Abbreviations


2D
2D is an abbreviation for 2-Dimensional

3D
3D is an abbreviation for 3-Dimensional

3M
3M is an abbreviation for
Minnesota Mining and Manufacturing

4GL
4GL is an abbreviation for Fourth Generation Language

4H
4H is an abbreviation for Head,
Heart, Hands, Health

4WD
4WD is an abbreviation for Four wheel Drive (see also
FWD)

A
A is an abbreviation for Aftermath

A&A
A&A is an abbreviation for
Astronomy and Astrophysics

A&M
A&M is an abbreviation for Agricultural and Mechanical

A/D
A/D is an abbreviation for Analog to Digital converter (see
ADC)

A/P
A/P is an abbreviation for Accounts Payable

A/R
A/R is an abbreviation for Accounts Receivable

AA
AA is an abbreviation for Affirmative
Action committee; Alcoholics Anonymous; Antiaircraft Artillery; Associate in Accounting; Automobile Association

AAA
AAA is an abbreviation for
American Automobile Association

AAAL
AAAL is an abbreviation for
American Academy of Arts and Letters

AAAS
AAAS is an abbreviation for
American Association for the Advancement of Science

AAII
AAII is an abbreviation for
American Association of Individual Investors

AAMSI
AAMSI is an abbreviation for
American Association for Medical Systems Informatics

AAO
AAO is an abbreviation for Anglo-Australian Observatory

AAP
AAP is an abbreviation for Affirmative
Action Program

AAR
AAR is an abbreviation for Automatic Alternate Routing

AARC
AARC is an abbreviation for Anglo-American Cataloging Rules

AARN
AARN is an abbreviation for Australian Academic Research Network

AARP
AARP is an abbreviation for
American Association of Retired Persons

AAS
AAS is an abbreviation for
American Astronomical Society

AAVSO
AAVSO is an abbreviation for
American Association of Variable Star Observers

AB
AB is an abbreviation for ABle
seaman

ABA
ABA is an abbreviation for
American Bar Association; American Basketball Association; American Booksellers Association

ABBR
ABBR is an abbreviation for ABBReviation

ABC
ABC is an abbreviation for
American Broadcasting Company

AC
AC is an abbreviation for Alternating
Current (see also DC); Ante Christum (before Christ); Ante Cibum (before meals)

ACAA
ACAA is an abbreviation for Agricultural Conservation and Adjustment Administration

ACAWS
ACAWS is an abbreviation for Advisory, Caution, And Warning System

ACBL
ACBL is an abbreviation for
American Contract Bridge League

ACC
ACC is an abbreviation for
Argonne Code Center

ACCS
ACCS is an abbreviation for
Army Command and Control System

ACD
ACD is an abbreviation for Automatic Call
Distributor

ACE
ACE is an abbreviation for Advanced Composition Explorer; Advanced Computing Environments; Automatic Calibration and Equalization

ACF
ACF is an abbreviation for Advanced Communications Function

ACHEFT
ACHEFT is an abbreviation for Automated Clearing
House Electronic Funds Transfer

ACK
ACK is an abbreviation for ACKnowledge

ACL
ACL is an abbreviation for Advanced
Cmos Logic

ACLU
ACLU is an abbreviation for
American Civil Liberties Union

ACM
ACM is an abbreviation for Association for Computing Machinery

ACRV
ACRV is an abbreviation for Assured Crew Return Vehicle or Astronaut Crew Rescue Vehicle

ACS
ACS is an abbreviation for Advanced Communications System

ACSE
ACSE is an abbreviation for Association Control Service Entity (ISO/CCITT layer 7)

ACT
ACT is an abbreviation for
Action for Children's Television; American Conservatory Theater

ACTS
ACTS is an abbreviation for Advanced Communications Technology Satellite; Automatic
Coin Telephone Service

ACU
ACU is an abbreviation for Alarm Control Unit; Automatic Call Unit

ACW
ACW is an abbreviation for Alternating Continuous Waves

AD
AD is an abbreviation for After
Date; Anno Domini (in the year of our Lord); Application Development

Ad Astra
Ad Astra is an abbreviation for To the stars

AD&D
AD&D is an abbreviation for Advanced Dungeons & Dragons

ADAP
ADAP is an abbreviation for Alzheimer's disease-associated
protein; American Discount Auto Parts

ADB
ADB is an abbreviation for A DeBugger;
Apple Desktop Bus

ADC
ADC is an abbreviation for Analog to Digital Converter

ADCI
ADCI is an abbreviation for Automatic Display Call Indicator

ADF
ADF is an abbreviation for Automatic Direction Finder

ADM
ADM is an abbreviation for
ADMiral

ADP
ADP is an abbreviation for Adenosine Di-Phosphate; Administrative
Data Processing; Advanced Data Processing

ADPCM
ADPCM is an abbreviation for Pulse Code
Modulation with Adaptive Quantization

ADS
ADS is an abbreviation for Application Development System

ADSR
ADSR is an abbreviation for Attack Decay Sustain Release

ADT
ADT is an abbreviation for
Abstract Data Type; Atlantic Daylight Time

AE
AE is an abbreviation for Application Execution

AEA
AEA is an abbreviation for
American Electronics Association

AEC
AEC is an abbreviation for Atomic
Energy Commission

AEF
AEF is an abbreviation for
American Expeditionary Force (see BEF)

AEGIS
AEGIS is an abbreviation for Advanced Electronic Guidance and Instrumentation System

AF
AF is an abbreviation for Adventures in Fantasy;
Air Force; Audio Frequency

AFADS
AFADS is an abbreviation for Automatic Force Adjustment
Data System

AFATDS
AFATDS is an abbreviation for Advanced Field
Artillery Tactical Data System

AFB
AFB is an abbreviation for
Air Force Base

AFC
AFC is an abbreviation for
American Football Conference; Automatic Flight Control; Automatic Frequency Control

AFCAC
AFCAC is an abbreviation for
Air Force Computer Acquisition Center

AFCC
AFCC is an abbreviation for
Air Force Communications Command

AFGE
AFGE is an abbreviation for
American Federation of Government Employees

AFIPS
AFIPS is an abbreviation for
American Federation of Information Processing Societies

AFL
AFL is an abbreviation for
American Federation of Labor; American Football League

AFLCIO
AFLCIO is an abbreviation for
American Federation of Labor and Congress of Industrial Organizations

AFNOR
AFNOR is an abbreviation for Association Francaise de NORmalization

AFP
AFP is an abbreviation for Appletalk Filing Protocol

AFS
AFS is an abbreviation for
Andrew File System

AFSC
AFSC is an abbreviation for
Air Force Systems Command

AFSCME
AFSCME is an abbreviation for
American Federation of State, County and Municipal Employees

AFTRA
AFTRA is an abbreviation for
American Federation of Television and Radio Artists

AFV
AFV is an abbreviation for Armoured Fighting Vehicle

AG
AG is an abbreviation for Adjutant General;
Arcade Game; Attorney General

AGCT
AGCT is an abbreviation for
Army General Classification Test

AGN
AGN is an abbreviation for Active Galactic
Nucleus

AHL
AHL is an abbreviation for
American Hockey League

AHQ
AHQ is an abbreviation for
Air HeadQuarters

AI
AI is an abbreviation for Artificial Intelligence

AIAA
AIAA is an abbreviation for
American Institute of Aeronautics and Astronautics

AIC
AIC is an abbreviation for Automatic Intercept Center

AID
AID is an abbreviation for Agency for International Development

AIDDE
AIDDE is an abbreviation for
Ames' Interactive Dynamic Display Editor

AIDS
AIDS is an abbreviation for Acquired Immune Deficiency Syndrome

AIOD
AIOD is an abbreviation for Automatic Identification Outward Dialing

AIS
AIS is an abbreviation for Automatic Intercept System

AIX
AIX is an abbreviation for Advanced Interactive eXecutive

AJ
AJ is an abbreviation for Astronomical Journal

AK
AK is an abbreviation for
Alaska

AKA
AKA is an abbreviation for Also Known As

AL
AL is an abbreviation for
Alabama; American League (baseball)

ALA
ALA is an abbreviation for
American Library Association; Automobile Legal Association

ALB
ALB is an abbreviation for Analog LoopBack

ALBM
ALBM is an abbreviation for Air-to-Land Ballistic Missile

ALC
ALC is an abbreviation for Automatic Load Control

ALGOL
ALGOL is an abbreviation for ALGOrithmic Language

ALIT
ALIT is an abbreviation for Automatic Line Insulation Testing

ALPO
ALPO is an abbreviation for Association of Lunar and Planetary Observers

ALS
ALS is an abbreviation for Advanced Launch System

ALU
ALU is an abbreviation for Arithmetic Logic Unit

AM
AM is an abbreviation for
Amplitude Modulation; Ante Meridiem (before noon)

AMA
AMA is an abbreviation for
American Medical Association; Automatic Message Accounting

AMARC
AMARC is an abbreviation for Automatic Message Accounting Recording Center

AMBA
AMBA is an abbreviation for Association of Master of Business Administration

AMC
AMC is an abbreviation for
Albany Medical College; American Motors Corporation; Appalachian Mountain Club

AMD
AMD is an abbreviation for Advanced
Micro Devices

AMEX
AMEX is an abbreviation for
AMerican EXpress

AMI
AMI is an abbreviation for Alternate Mark Inversion (see also
NRZ, NRZI, B8ZS)

AMORC
AMORC is an abbreviation for Ancient
Mystic Order Rosae Crucis

AMP
AMP is an abbreviation for Adenosine MonoPhosphate

AMPAS
AMPAS is an abbreviation for Academy of Motion Picture Arts and Sciences; Acedemy of Motion Picture Arts and Sciences

AMRAAM
AMRAAM is an abbreviation for Advanced Medium
Range Air-To-Air Missile

AMROC
AMROC is an abbreviation for
American Rocket Company

AMSAT
AMSAT is an abbreviation for radio AMateur SATellite corp.

AMU
AMU is an abbreviation for Atomic
Mass Unit

AMVET
AMVET is an abbreviation for
AMerican VETeran

ANA
ANA is an abbreviation for
American Nurses Association

ANAC
ANAC is an abbreviation for Automatic Number Announcemnt
Circuit

ANC
ANC is an abbreviation for All Number Calling;
Army Nurse Corps

ANDF
ANDF is an abbreviation for Architecture-Neural Distribution Format

ANF
ANF is an abbreviation for Automatic Number Forwarding

ANG
ANG is an abbreviation for
Air National Guard

ANI
ANI is an abbreviation for Automatic Number Identification (see also:
CLID)

ANL
ANL is an abbreviation for
Argonne National Laboratory

ANOVA
ANOVA is an abbreviation for ANalysis Of VAriance

ANPA
ANPA is an abbreviation for
American Newspaper Publishers Association

ANSI
ANSI is an abbreviation for
American National Standards Institute

ANZUS
ANZUS is an abbreviation for
Australia, New Zealand, United States

AO
AO is an abbreviation for Account Of

AOA
AOA is an abbreviation for
Abort Once Around (Shuttle abort plan); Abort Once Around

AOL
AOL is an abbreviation for Absent Over Leave (see
AWOL)

AOS
AOS is an abbreviation for Academic Operating System; Alternate Operator Service

AP
AP is an abbreviation for Additional Premium; All Points; Associated Press

Ap.J
Ap.J is an abbreviation for Astrophysical Journal

APA
APA is an abbreviation for All Points Addressable;
American Psychological Association

APB
APB is an abbreviation for All Points Bulletin

APDA
APDA is an abbreviation for
Apple Programmers and Developers Association

API
API is an abbreviation for Application Programming
Interface

APICS
APICS is an abbreviation for
American Production and Inventory Control Society

APL
APL is an abbreviation for A Programming Language; acute promyelocytic leukemia

APO
APO is an abbreviation for
Alpha Phi Omega, service fraternity; Army Post Office

APP
APP is an abbreviation for Applications Portability Profile

APPC
APPC is an abbreviation for Advanced Peer-to-Peer Communications

APR
APR is an abbreviation for Annual Percentage Rate

APSE
APSE is an abbreviation for
Ada Programming Support Environment

APU
APU is an abbreviation for Auxiliary Power Unit

AQ
AQ is an abbreviation for Accumulator-Quotient
register

AR
AR is an abbreviation for Address
Register; Arkansas

ARC
ARC is an abbreviation for AIDS-related complex;
American Red Cross; Ames Research Center

ARCNET
ARCNET is an abbreviation for Attached Resource
Computer local area NETwork

ARO
ARO is an abbreviation for After Receipt of Order

ARP
ARP is an abbreviation for Address Resolution Protocol

ARPA
ARPA is an abbreviation for Advanced Research Projects Agency

ARPANET
ARPANET is an abbreviation for
ARPA NETwork

ARRL
ARRL is an abbreviation for Amateur Radio Relay
League

ARV
ARV is an abbreviation for
American Revised Version

AS
AS is an abbreviation for Anglo-Saxon

ASA
ASA is an abbreviation for Acetyl Salicylic
Acid

ASAP
ASAP is an abbreviation for As Soon As Possible

ASC
ASC is an abbreviation for Accredited Standards Committee

ASCAP
ASCAP is an abbreviation for
American Society of Composers, Authors, and Publishers

ASCC
ASCC is an abbreviation for Automatic Sequence-Controlled Calculator

ASCII
ASCII is an abbreviation for
American Standard Code for Information Interchange

ASDIC
ASDIC is an abbreviation for Anti-Submarine Detection Investigation Committee

ASDSP
ASDSP is an abbreviation for Application-Specific Digital Signal Processor

ASG
ASG is an abbreviation for Automated Sciences Group

ASHRAE
ASHRAE is an abbreviation for Amer. Soc. of Heating, Refrigerating and Air-cond. Engineers, inc.

ASIC
ASIC is an abbreviation for Application Specific Integrated
Circuit

ASME
ASME is an abbreviation for
American Society of Mechanical Engineers

ASN
ASN is an abbreviation for
Abstract Syntax Notation One (ISO/CCITT ASN.1)

ASP
ASP is an abbreviation for Aggregated Switch Procurement

ASRM
ASRM is an abbreviation for Advanced
Solid Rocket Motor

ASSR
ASSR is an abbreviation for Autonomous
Soviet Socialist Republic

AST
AST is an abbreviation for
Atlantic Standard Time

ASV
ASV is an abbreviation for
American Standard Version

AT
AT is an abbreviation for
Atlantic Time

AT&T
AT&T is an abbreviation for
American Telephone & Telegraph

ATA
ATA is an abbreviation for Automatic Trouble Analysis

ATACC
ATACC is an abbreviation for Advanced Tactical
Air Command Central

ATB
ATB is an abbreviation for Advanced Technology Bomber (stealth bomber)

ATC
ATC is an abbreviation for
Air Traffic Control

ATDRS
ATDRS is an abbreviation for Advanced Tracking and
Data Relay Satellite

ATF
ATF is an abbreviation for Advanced Technology Fighter

ATIS
ATIS is an abbreviation for
Atherton Tools Interface Specification

ATLAS
ATLAS is an abbreviation for Atmospheric Laboratory for Applications and Science

ATM
ATM is an abbreviation for Amateur
Telescope Maker; Asynchronous Transfer Mode; Automatic Teller Machine

ATO
ATO is an abbreviation for
Abort To Orbit (Shuttle abort plan); Abort To Orbit

ATOMS
ATOMS is an abbreviation for
AT&t Optimized Materials Simulator

ATP
ATP is an abbreviation for Adenosine TriPhosphate

ATPCO
ATPCO is an abbreviation for Airline
Tariff Publishing COmpany

ATT
ATT is an abbreviation for
American Telephone & Telegraph (normally written AT&T when separate)

ATTIS
ATTIS is an abbreviation for
American Telephone and Telegraph Information Systems

ATV
ATV is an abbreviation for All Terrain Vehicle

AU
AU is an abbreviation for Astronomical Unit (93,000,000
miles); Astronomical Unit

AUI
AUI is an abbreviation for Attachment
Universal Interface

AURA
AURA is an abbreviation for Association of Universities for Research in
Astronomy

AUS
AUS is an abbreviation for
Army of the United States

AUTODIN
AUTODIN is an abbreviation for AUTOmatic DIgital Network

AUTOVON
AUTOVON is an abbreviation for AUTOmatic VOice Network

AV
AV is an abbreviation for AudioVisual

AVD
AVD is an abbreviation for Alternate Voice
Data

AVLIS
AVLIS is an abbreviation for Atomic Vapor
Laser Isotope Separation

AW&ST
AW&ST is an abbreviation for Aviation Week and Space Technology

AWACS
AWACS is an abbreviation for Airborne Warnings And Control Systems

AWEA
AWEA is an abbreviation for
American Wind Energy Association

AWG
AWG is an abbreviation for
American Wire Gauge

AWK
AWK is an abbreviation for
al Aho, Peter Weinberger, Brian Kernighan

AWOL
AWOL is an abbreviation for Absent WithOut Leave (also Absent Without Official Leave) (see
AOL)

AXAF
AXAF is an abbreviation for Advanced X-ray Astrophysics Facility

AZ
AZ is an abbreviation for
Arizona

B
B is an abbreviation for Book

B8ZS
B8ZS is an abbreviation for Binary 8
Zero Substitution (see also NRZ, NRZI, AMI)

BA
BA is an abbreviation for
Bachelor of Arts

BACH
BACH is an abbreviation for Business
Alliance for Commerce in Hemp

BAFO
BAFO is an abbreviation for
Best And Final Offer

BARRNet
BARRNet is an abbreviation for
Bay Area Regional Research Network

BASIC
BASIC is an abbreviation for Beginner's All-purpose Symbolic Instruction Code

BATSE
BATSE is an abbreviation for Burst And Transient Source
Experiment (on GRO)

BB
BB is an abbreviation for Bases on Balls;
Best of Breed; Bunnies and Burrows

BBA
BBA is an abbreviation for
Bachelor of Business Administration

BBB
BBB is an abbreviation for Better Business
Bureau

BBC
BBC is an abbreviation for British Broadcasting Corporation

BBL
BBL is an abbreviation for
Barrel

BBN
BBN is an abbreviation for Bolt, Beranek, and
Newman, Inc.

BBXRT
BBXRT is an abbreviation for Broad-Band X-Ray
Telescope

BC
BC is an abbreviation for Battlecars; Before Christ; British
Columbia

BC/BS
BC/BS is an abbreviation for Blue Cross/Blue Shield

BCD
BCD is an abbreviation for Bad Conduct Discharge; Binary Coded Decimal

BCDIC
BCDIC is an abbreviation for Binary Coded Decimal Interchange Code

BCE
BCE is an abbreviation for Before the Common
Era (substitute for BC)

BCNU
BCNU is an abbreviation for Be Seeing You

BCP
BCP is an abbreviation for Byte Controlled Protocols

BCPL
BCPL is an abbreviation for
Basic Combined Programming Language

BCS
BCS is an abbreviation for
Bachelor of Commercial Science; Binary Compatibility Standard; Boston Computer Society; British Computer Society

BD
BD is an abbreviation for
Bachelor of Divinity; Bank Draft; Bills Discounted

BD&D
BD&D is an abbreviation for
Basic Dungeons & Dragons

BDF
BDF is an abbreviation for Binary Distribution Format

BDT
BDT is an abbreviation for Billing
Data Transmitter

BE
BE is an abbreviation for Bill of Exchange

BEF
BEF is an abbreviation for British Expeditionary Force (see
AEF)

BELCORE
BELCORE is an abbreviation for
BELL COmmunications REsearch

BEM
BEM is an abbreviation for Bug Eyed Monster; Bug-Eyed Monster

BENELUX
BENELUX is an abbreviation for
Belgium, Netherlands, and Luxembourg

BER
BER is an abbreviation for
Bit Error Rate

BERT
BERT is an abbreviation for
Bit Error Rate Test

BEST
BEST is an abbreviation for Borland Enhanced Support and Training

BF
BF is an abbreviation for Brought
Forward

BFA
BFA is an abbreviation for
Bachelor of Fine Arts

BFD
BFD is an abbreviation for
Bristol (RI) Fire Department

BH
BH is an abbreviation for Black Hole; Boot Hill

BHP
BHP is an abbreviation for Brake
HorsePower

BICS
BICS is an abbreviation for Building
Industry Consulting Services

BID
BID is an abbreviation for
Bis In Die (twice a day)

BIMA
BIMA is an abbreviation for
Berkeley Illinois Maryland Array

BIOS
BIOS is an abbreviation for
Basic Input Output System

BIS
BIS is an abbreviation for Business Information System

BISDN
BISDN is an abbreviation for Broadband
ISDN

BiSync
BiSync is an abbreviation for Binary Synchronous Communications

Bit
Bit is an abbreviation for BInary digiT

BITNET
BITNET is an abbreviation for Because It's
Time Network

BLAST
BLAST is an abbreviation for BLocked
ASynchronous Transmission

BLERT
BLERT is an abbreviation for BLock Error Rate Test

BLF
BLF is an abbreviation for Busy
Lamp Field

BLT
BLT is an abbreviation for BLock Transfer;
Bacon, Lettuce, and Tomato (sandwich); Branch Less Than

BM
BM is an abbreviation for Basal Metabolism;
Bowel Movement

BMA
BMA is an abbreviation for Bank Marketing Association

BMEWS
BMEWS is an abbreviation for Ballistic Missile
Early Warning

BMO
BMO is an abbreviation for Ballistic Missile Office

BMOC
BMOC is an abbreviation for Big
Man On Campus

BMR
BMR is an abbreviation for Basal Metabolism Rate

BNC
BNC is an abbreviation for
Bayonet Neill Concelman

BNF
BNF is an abbreviation for Bachus-Naur Form

BO
BO is an abbreviation for Body Odor;
Branch Office; Buyer's Option

BOC
BOC is an abbreviation for
Bell Operating Company

BOD
BOD is an abbreviation for Board Of Directors

BOF
BOF is an abbreviation for
Birds Of a Feather

BOM
BOM is an abbreviation for Bill Of Materials

BOOTP
BOOTP is an abbreviation for Bootstrap Protocol

BOQ
BOQ is an abbreviation for
Bachelor Officers' Quarters

BOS
BOS is an abbreviation for Business Office Supervisor

BOSIX
BOSIX is an abbreviation for Biin Open System
Interface eXtension

BP
BP is an abbreviation for
Blood Pressure; British Petroleum; British Pharmacopoeia

BPI
BPI is an abbreviation for Bits Per
Inch

BPL
BPL is an abbreviation for
Boston Public Library; Branch if PLus

BPOE
BPOE is an abbreviation for Benevolent and Protective Order of Elks

BPS
BPS is an abbreviation for Bits Per Second

BR
BR is an abbreviation for Bills Receivable; British
Rail

BRA
BRA is an abbreviation for
Boston Redevelopment Authority

BRI
BRI is an abbreviation for
Basic Rate Interface

BRIEF
BRIEF is an abbreviation for
Basic Reconfigurable Interactive Editing Facility

BRL
BRL is an abbreviation for
army Ballistic Research Laboratory

BRS
BRS is an abbreviation for Bibliographic Retrieval Service

BS
BS is an abbreviation for
Bachelor of Science; Bill of Sale

BSA
BSA is an abbreviation for
Birmingham Small Arms; Boy Scouts of America

BSC
BSC is an abbreviation for Binary Synchronous Communications

BSc
BSc is an abbreviation for
Bachelor of SCience

BSD
BSD is an abbreviation for
Berkeley Software Distribution

BSN
BSN is an abbreviation for
Bachelor of Science in Nursing

BSS
BSS is an abbreviation for Block Started by
Symbol

BSTJ
BSTJ is an abbreviation for
Bell System Technical Journal

BT
BT is an abbreviation for British Telecom

BTAM
BTAM is an abbreviation for
Basic Telecommunications Access Method

BThU
BThU is an abbreviation for British Thermal Unit (
BTU is preferred)

BTL
BTL is an abbreviation for
Bell Telephone Laboratories

BTO
BTO is an abbreviation for Bachman
Turner Overdrive

BTU
BTU is an abbreviation for British Thermal Unit

BTW
BTW is an abbreviation for By The Way

BU
BU is an abbreviation for
Boston University

BUF
BUF is an abbreviation for B-52 bomber ("Big Ugly Fellow")

BV
BV is an abbreviation for Blessed
Virgin

BWI
BWI is an abbreviation for Baltimore-Washington International; British
West Indies

BX
BX is an abbreviation for Base eXchange (see also
PX)

C
C is an abbreviation for centi- (metric 1/100)

C&S
C&S is an abbreviation for Chivalry & Sorcery

C&T
C&T is an abbreviation for Communications & Tracking

C/O
C/O is an abbreviation for in
Care Of

CA
CA is an abbreviation for
California; Chartered Accountant; Chief Accountant; Chronological Age; Collision Avoidance (as in CSMA/CA)

CAB
CAB is an abbreviation for Civil Aeronautics Board

CACM
CACM is an abbreviation for Communications of the Association for Computing Machinery

CAD
CAD is an abbreviation for
Computer Aided Design (sometimes seen as CAD/CAM); Computer Aided Dispatching

CAE
CAE is an abbreviation for Common Applications Environment;
Computer Aided Engineering

CAI
CAI is an abbreviation for
Computer Aided Instruction

CAIS
CAIS is an abbreviation for Common
Apse Interface Specification

CALS
CALS is an abbreviation for Computer-aided Acquisition and Logistics Support

CAM
CAM is an abbreviation for
Computer Aided Management; Computer Aided Manufacturing (sometimes seen as CAD/CAM); Content Addressable Memory

CAMA
CAMA is an abbreviation for Centralized Automatic Message Accounting

CAMP
CAMP is an abbreviation for Campaign Against Marijuana Planting

CAP
CAP is an abbreviation for Civil
Air Patrol; Columbia Appletalk Package

CAR
CAR is an abbreviation for Contents of the Address part of the
Register

CARE
CARE is an abbreviation for Committee on
American Relief in Europe

CARP
CARP is an abbreviation for
California Air Resources Board

CASE
CASE is an abbreviation for
Computer Aided Software Engineering

CASSIS
CASSIS is an abbreviation for Classification and Search Support Information System

CAT
CAT is an abbreviation for Computer-Aided Tomography

CATIS
CATIS is an abbreviation for Common Applications and Tools Integration Services

CATV
CATV is an abbreviation for Common
Antenna TeleVision; Community Antenna TeleVision

CAVU
CAVU is an abbreviation for Ceiling And Visibility Unlimited

CB
CB is an abbreviation for Citizens Band radio

CBC
CBC is an abbreviation for
Canadian Broadcasting Corporation

CBD
CBD is an abbreviation for
Cash Before Delivery; Commerce Business Daily

CBEMA
CBEMA is an abbreviation for
Computer & Business Equipment Manufacturers Association

CBR
CBR is an abbreviation for Chemical, Biological, Radiological warfare

CBS
CBS is an abbreviation for
Columbia Broadcasting System

CBW
CBW is an abbreviation for Chemical and Biological Warfare

CC
CC is an abbreviation for C (language)
Compiler; Carbon Copy

CCA
CCA is an abbreviation for
Computer Corporation of America

CCAFS
CCAFS is an abbreviation for Cape Canaveral
Air Force Station

CCC
CCC is an abbreviation for
Canadian Committee on Cataloging; Civilian Conservation Corps; Command, Control, and Communications; Concourse Computer Center

CCCCM
CCCCM is an abbreviation for
CCC CounterMeasures

CCCI
CCCI is an abbreviation for Command, Control, Communications, and Intelligence

CCD
CCD is an abbreviation for Charge Coupled Device (see
CID); Charge-Coupled Device

CCDS
CCDS is an abbreviation for Centers for the
Commercial Development of Space

CCF
CCF is an abbreviation for
Hundred Cubic Feet

CCI
CCI is an abbreviation for
Computer Carrier Interrupt; Computer Consoles, Incorporated

CCIP
CCIP is an abbreviation for Continuously Computed
Impact Point

CCIRN
CCIRN is an abbreviation for Coordinating Committee for Intercontinental Research Networking

CCIS
CCIS is an abbreviation for Common Channel Interoffice Signaling

CCITT
CCITT is an abbreviation for Comite' Consultatif International Telegraphique
et Telephonique; Consultative Committee on International Telephony and Telegraphy; International Telegraph and Telephone Consultative Committee

CCR
CCR is an abbreviation for Commitment, Concurrency, and
Recovery; Creedence Clearwater Revival

CCRI
CCRI is an abbreviation for Community College of Rhode Island

CCRP
CCRP is an abbreviation for Continuously Computed Release
Point

CCS
CCS is an abbreviation for
Hundred Call Seconds

CCS7
CCS7 is an abbreviation for Common Channel Signalling

CCSA
CCSA is an abbreviation for Common Control Switching Arrangement

CCTA
CCTA is an abbreviation for
Central Computer and Telecommunications Agency

CCTV
CCTV is an abbreviation for Closed
Circuit TeleVision

CD
CD is an abbreviation for
Carrier Detect (properly DCD ) (EIA RS-232-C); Certificate of Deposit; Civil Defense; Collision Detection (as in CSMA/CD); Compact Disk

CD-ROM
CD-ROM is an abbreviation for
Compact Disk Read Only Memory; Compact Disk Read-Only Memory

CDA
CDA is an abbreviation for Call
Data Accumulator; Compound Documents Architecture

CDC
CDC is an abbreviation for Centers for Disease Control; Control
Data Corporation, Inc.

CDEV
CDEV is an abbreviation for Control panel DEVice

CDIAC
CDIAC is an abbreviation for
Carbon Dioxide Information Analysis Center

CDO
CDO is an abbreviation for Community
Dial Office

CDP
CDP is an abbreviation for Community Development Project

CDR
CDR is an abbreviation for
Commander; Contents of the Decrement part of the Register

CDSF
CDSF is an abbreviation for Commercially Developed Space Facility

CDT
CDT is an abbreviation for
Central Daylight Time

CDU
CDU is an abbreviation for Control Display Unit

CE
CE is an abbreviation for Chemical Engineer; Civil Engineer; Common
Era (substitute for AD); Corps of Engineers; Customer Engineer (see also FE, SE)

CEA
CEA is an abbreviation for
Commissariat a l'Energie Atomique (Frenc Atomic Energy Commision); Council of Economic Advisors; County Education Authority

CEC
CEC is an abbreviation for Commission of the
European Communities

CED
CED is an abbreviation for Committee for Economic Development

CELSS
CELSS is an abbreviation for Controlled Ecological Life Support System

CENS
CENS is an abbreviation for
Centre d'Etudes Nucleaires de Seclay

CENTO
CENTO is an abbreviation for
CENtral Treaty Organization

CEO
CEO is an abbreviation for Chief Executive Officer

CERFnet
CERFnet is an abbreviation for
California Education and Research Federation Network

CERN
CERN is an abbreviation for
European Organization for Nuclear Research; organisation (formerly Conseil) Europeenne pour la Recherche Nucleaires

CERT
CERT is an abbreviation for
Computer Emergency Response Team

CEVI
CEVI is an abbreviation for Common Equipment Voltage Indicator

CF
CF is an abbreviation for Carry
Forward; Coin First (payphone); Cystic Fibrosis

CFA
CFA is an abbreviation for Center For Astrophysics

CFC
CFC is an abbreviation for Chloro-FluoroCarbon; Combined Federal Campaign

CFD
CFD is an abbreviation for Computational Fluid
Dynamics

CFHT
CFHT is an abbreviation for Canada-France-Hawaii
Telescope

CFI
CFI is an abbreviation for Cost, Freight, and Insurance

CFL
CFL is an abbreviation for
Canadian Football League

CFO
CFO is an abbreviation for Chief Financial Officer

CG
CG is an abbreviation for
Coast Guard; Commanding General

CG&E
CG&E is an abbreviation for
Cincinnati Gas & Electric

CGA
CGA is an abbreviation for Color Graphics Adapter

CGCT
CGCT is an abbreviation for Compagnie Generale de Constructions Telephoniques

CGE
CGE is an abbreviation for Compagnie Generale d'Electricite

CH
CH is an abbreviation for Cardboard Heroes; ClearingHouse; CourtHouse; Customs
House

CHA
CHA is an abbreviation for Champions

CHAP
CHAP is an abbreviation for CHAnnel Processor

CHARA
CHARA is an abbreviation for Center for High Angular Resolution
Astronomy

CHI
CHI is an abbreviation for Chill: Adventures into the Unknown

CHOTS
CHOTS is an abbreviation for Corporate Headquarters Office Technology System

CHP
CHP is an abbreviation for
California Highway Patrol

CI
CI is an abbreviation for Cubic Inches

CIA
CIA is an abbreviation for
Central Intelligence Agency; Culinary Institute of America (Hyde Park, NY)

CIC
CIC is an abbreviation for
Carrier Identification Codes; Committee on Institutional Cooperation; Coordination and Information Center

CICA
CICA is an abbreviation for Competition in Contracting Act

CICS
CICS is an abbreviation for Customer Information Control System

CID
CID is an abbreviation for Caller
ID (see also: CLID, ANI); Central Institute for the Deaf; Charge Injection Device (see CCD); Computer Integrated Design; Criminal Investigation Department (C.I.D.)

CIDIN
CIDIN is an abbreviation for Common Icao
Data Interchange Network

CIM
CIM is an abbreviation for
Computer Integrated Manufacturing

CIO
CIO is an abbreviation for Chief Information Officer

CIRRIS
CIRRIS is an abbreviation for Cryogenic InfraRed Radiance Instrument for Shuttle

CISC
CISC is an abbreviation for Complex Instruction Set
Computer

Cislunar
Cislunar is an abbreviation for The space between the
Earth and the Moon

CIT
CIT is an abbreviation for
California Institute of Technology; Case Institute of Technology (part of CWRU, Cleveland, Ohio); Circumstellar Imaging Telescope

CLASP
CLASP is an abbreviation for Comprehensive Logistics Automated Support Program

CLASS
CLASS is an abbreviation for Custom Local Area Signaling Service

CLI
CLI is an abbreviation for Command Line Interpreter

CLID
CLID is an abbreviation for Calling Line
ID (see also: CID, ANI)

CLNP
CLNP is an abbreviation for Connectionless-mode Network Protocol

CLNS
CLNS is an abbreviation for Connectionless-mode Network Service

CLR
CLR is an abbreviation for Combined Line and Recording

CLRC
CLRC is an abbreviation for
Circuit Layout Record Card

CLU
CLU is an abbreviation for Chartered Life Underwriter

CLUT
CLUT is an abbreviation for Color LookUp Table

CM
CM is an abbreviation for Command Module (
Apollo spacecraft); Congregation of the Mission

CM
CM is an abbreviation for centimeters

CMC
CMC is an abbreviation for Communication Machinery Corp.

CMD
CMD is an abbreviation for Centralized Message Distribution

CMIP
CMIP is an abbreviation for Common Management Information Protocol

CMIS
CMIS is an abbreviation for Common Management Information Services

CML
CML is an abbreviation for
Current Model Logic

CMMU
CMMU is an abbreviation for Cache/Memory Management Unit

CMOS
CMOS is an abbreviation for Complementary
Metal Oxide Semiconductor (see MOS)

CMOT
CMOT is an abbreviation for Common Management Information Services and Protocol Over
TCP/IP

CMRR
CMRR is an abbreviation for Common Mode Rejection Ratio

CMS
CMS is an abbreviation for
Circuit Maintenance System

CMSgt
CMSgt is an abbreviation for Chief Master
Sergeant

CMU
CMU is an abbreviation for Carnegie-Mellon University

CMYK
CMYK is an abbreviation for cyan,
magenta, yellow, black

CN
CN is an abbreviation for
Canadian National

CN/A
CN/A is an abbreviation for Customer Name / Address

CNI
CNI is an abbreviation for Common Network
Interface

CNN
CNN is an abbreviation for
Cable News Network

CNO
CNO is an abbreviation for Carbon-Nitrogen-Oxygen; Chief of Naval Operations

CNR
CNR is an abbreviation for
Canadian National Railways; Carrier to Noise Ratio

CNRI
CNRI is an abbreviation for Corporation for National Research Initiatives

CNRS
CNRS is an abbreviation for
Centre National de la Recherche Scientifique (French National Center for Scientific Research)

CNS
CNS is an abbreviation for
Central Nervous System

CNSR
CNSR is an abbreviation for
Comet Nucleus Sample Return

CO
CO is an abbreviation for
Cash Order; Central Office; Colorado; Commanding Officer; Conscientious Objector

COB
COB is an abbreviation for Close Of Business

COBE
COBE is an abbreviation for
COsmic Background Explorer

COBOL
COBOL is an abbreviation for COmmon Business Oriented Language

COC
COC is an abbreviation for Call of Cthulhu

COCOT
COCOT is an abbreviation for Customer Owned,
Coin Operated Telephone

COD
COD is an abbreviation for Collect On Delivery;
Cash On Delivery

CODEC
CODEC is an abbreviation for Coder-Decoder

COER
COER is an abbreviation for
Central Office Equipment Report

COLA
COLA is an abbreviation for Cost-Of-Living Allowance

COM
COM is an abbreviation for
Computer Output (on) Microfiche; Computer Output (on) Microfilm

COMAS
COMAS is an abbreviation for
Central Office Maintenance and Administration System

COMM
COMM is an abbreviation for Communications

COMPACT
COMPACT is an abbreviation for
COMmercial Product ACquisition Team

COMPTEL
COMPTEL is an abbreviation for
COMPton TELescope (on GRO)

COMSAT
COMSAT is an abbreviation for Communications Satellite

CONACYT
CONACYT is an abbreviation for Consejo Nacional de Cienca Y Tecnologia (Mexican National
Council of Science and Technology)

CONS
CONS is an abbreviation for CONStruct; Connection-Oriented Networking Service; Connection-Oriented Networking Session

CORE
CORE is an abbreviation for COntrolled Requirement Expression

CORN
CORN is an abbreviation for
COmputer Resource Nucleus

COS
COS is an abbreviation for Corporation for Open Systems

COSINE
COSINE is an abbreviation for Cooperation for Open Systems Interconnection Networking in
Europe

COSMIC
COSMIC is an abbreviation for COmmon System Main InterConnecting frame;
COmputer Software Management and Information Center

COSMOS
COSMOS is an abbreviation for
COmputer System for Mainframe OperationS

COSTAR
COSTAR is an abbreviation for Corrective Optics Space
Telescope Axial Replacement

COT
COT is an abbreviation for Card Or Tape (
NCR)

CP
CP is an abbreviation for
Campus Police; Canadian Pacific; Chemically Pure; CoPy; Command Post; Command Processor; the Canadian Press

CPA
CPA is an abbreviation for Certified Public
Accountant

CPE
CPE is an abbreviation for Customer Premises Equipment; Customer Provided Equipment

CPFF
CPFF is an abbreviation for Cost Plus Fixed Fee

CPI
CPI is an abbreviation for Characters Per
Inch; Common Programming Interface

CPL
CPL is an abbreviation for Combined Programming Language

CPM
CPM is an abbreviation for Control Program
Monitor (sometimes CP/M); Control Program for Microcomputers (sometimes CP/M)

CPO
CPO is an abbreviation for Chief
Petty Officer; Chief Post Office

CPR
CPR is an abbreviation for
Canadian Pacific Railway

CPS
CPS is an abbreviation for Characters Per Second

CPSR
CPSR is an abbreviation for
Computer Professionals for Social Responsibility

CPT
CPT is an abbreviation for
CaPTain

CPU
CPU is an abbreviation for
Central Processing Unit

CPW
CPW is an abbreviation for Certified Public Weigher

CQ
CQ is an abbreviation for Change of Quarters

CR
CR is an abbreviation for Carriage Return (
ASCII 15 octal)

CRA
CRA is an abbreviation for
Cambridge Redevelopment Authority

CRAF
CRAF is an abbreviation for
Comet Rendezvous / Asteroid Flyby

CRAM
CRAM is an abbreviation for Card Random Access Memory

CRC
CRC is an abbreviation for Chemical
Rubber Company; Cyclic Redundancy Check

CREG
CREG is an abbreviation for Concentrated
Range Extension with Gain

CREN
CREN is an abbreviation for The Corporation for Research and Educational Networking (merge of
BITNET and CSNet)

CRRES
CRRES is an abbreviation for Combined Release /
Radiation Effects Satellite; Combined Release and Radiation Effects Satellite

CRT
CRT is an abbreviation for
Cathode Ray Tube (also generic reference to a terminal)

CRTC
CRTC is an abbreviation for
Canadian Radio-television and Telecommunications Commission

CS
CS is an abbreviation for Civil Servant;
Computer Science; Computing Science; County Seat

CSA
CSA is an abbreviation for Confederate States of
America

CSAB
CSAB is an abbreviation for Computing Sciences Accreditation Board

CSACS
CSACS is an abbreviation for Centralized Status, Alarm and Control System

CSC
CSC is an abbreviation for
Computer Sciences Corporation

CSDC
CSDC is an abbreviation for
Circuit Switched Digital Capability

CSF
CSF is an abbreviation for Critical
Success Factor

CSI
CSI is an abbreviation for
Commercial Systems Integration

CSIS
CSIS is an abbreviation for
Canadian Security and Intelligence Service

CSL
CSL is an abbreviation for
Coin Supervising Link

CSM
CSM is an abbreviation for Command
Sergeant Major; Command and Service Module (Apollo spacecraft)

CSMA
CSMA is an abbreviation for
Carrier Sense Multiple Access

CSMA/CA
CSMA/CA is an abbreviation for
Carrier Sense Multiple Access with Collision Avoidance

CSMA/CD
CSMA/CD is an abbreviation for
Carrier Sense Multiple Access with Collision Detection

CSNET
CSNET is an abbreviation for
Computer + Science Network (merged with BITNET to make CREN)

CSO
CSO is an abbreviation for
Central Services Organization

CSOC
CSOC is an abbreviation for Consolidated Space Operations Center (at
Colorado Springs)

CSP
CSP is an abbreviation for Control Switching
Point

CSR
CSR is an abbreviation for Control and Status
Register; Customer Service Representative

CSRG
CSRG is an abbreviation for
Computer Systems Research Group

CSRS
CSRS is an abbreviation for civil Service Retirement System

CSS
CSS is an abbreviation for Customer Switching System

CST
CST is an abbreviation for
Central Standard Time

CSU
CSU is an abbreviation for Channel Service Unit

CT
CT is an abbreviation for
Central Time; Connecticut

CTC
CTC is an abbreviation for
Canadian Transport Commission; Centralized Traffic Control

CTD
CTD is an abbreviation for Computing and Telecommunications Division

CTIO
CTIO is an abbreviation for Cerro Tololo Inter-american Observatory; Cerro Tololo Interamerican Observatory

CTNE
CTNE is an abbreviation for Compania Telefonica Nacional de Espana

CTS
CTS is an abbreviation for Clear To Send (
EIA RS-232-C); Compatible Timesharing System

CTV
CTV is an abbreviation for
Canadian TeleVision network

CU
CU is an abbreviation for Close-Up

CUA
CUA is an abbreviation for Common User Access

CUL
CUL is an abbreviation for See You Later

CV
CV is an abbreviation for Curriculum Vitae

CW
CW is an abbreviation for
Car Wars; Chemical Warfare; Child Welfare; Churchwarden; Churdwarden; Continuous Wave

CWO
CWO is an abbreviation for
Cash With Order; Chief Warrant Officer

CWRU
CWRU is an abbreviation for
Case Western Reserve University

CXI
CXI is an abbreviation for Common X-windows
Interface

CY
CY is an abbreviation for Calendar Year

CYO
CYO is an abbreviation for Catholic Youth Organization

CZ
CZ is an abbreviation for
Canal Zone

D
D is an abbreviation for Depth

D&D
D&D is an abbreviation for Dungeons & Dragons

D/A
D/A is an abbreviation for Digital to Analog converter

D/F
D/F is an abbreviation for Direction Finding

DA
DA is an abbreviation for Days after Acceptance; Department of Agriculture;
Deposit Account; Directory Assistance (/C = computerised, /M = Microfilm); District Attorney

DA/C
DA/C is an abbreviation for Directory Assistance/Computerized

DA/M
DA/M is an abbreviation for Directory Assistance/Microfilm

DAC
DAC is an abbreviation for Digital to Analog Converter

DACCS
DACCS is an abbreviation for Digital Access
Cross Connect System (suspect, see DACS)

DACS
DACS is an abbreviation for Digital Access Cross-connect System

DAD
DAD is an abbreviation for Draft ADdendum

DAG
DAG is an abbreviation for Directed Acyclic Graph

DAL
DAL is an abbreviation for Dedicated Access Line

DAP
DAP is an abbreviation for Division Advisory Panel (of
NSF DNCRI)

DAR
DAR is an abbreviation for Daughters of the
American Revolution

DARE
DARE is an abbreviation for Drug Abuse Resistance Education

DARPA
DARPA is an abbreviation for Defense Advanced Research Projects Agency

DASD
DASD is an abbreviation for Direct Access Storage Device

DAT
DAT is an abbreviation for Digital Audio Tape

DATA
DATA is an abbreviation for Defense
Air Transport Administration

DAV
DAV is an abbreviation for Disabled
American Veterans

DB
DB is an abbreviation for DataBase

db
db is an abbreviation for
decibel(s)

dba
dba is an abbreviation for doing business as

DBF
DBF is an abbreviation for DBase Format

DBME
DBME is an abbreviation for DataBase Managment Environment

dbms
dbms is an abbreviation for DataBase Management System (
rdbms for Relational ...)

DBRAD
DBRAD is an abbreviation for
Data Base Relational Application Directory

DC
DC is an abbreviation for Direct
Current (dc, see also AC); District of Columbia

DCA
DCA is an abbreviation for Defense Communications Agency; Distributed Communication Architecture; Document Content Architecture

DCC
DCC is an abbreviation for Descriptive Cataloging Committee

DCCO
DCCO is an abbreviation for Defense
Commercial Communications Office

DCD
DCD is an abbreviation for
Data Carrier Detect (sometimes CD ) (EIA RS-232-C)

DCE
DCE is an abbreviation for
Data Communication Equipment

DCL
DCL is an abbreviation for Digital Command Language

DCP
DCP is an abbreviation for Distributed Communications Processor

DCTS
DCTS is an abbreviation for Dimension Custom
Telephone Service

DD
DD is an abbreviation for Daredevils;
Data Dictionary; Days after Date; Demand Draft; Dishonorable Discharge; Disk Drive; Doctor of Divinity

DDC
DDC is an abbreviation for Digital
Data Converter

DDCU
DDCU is an abbreviation for DC-to-DC Converter Unit

DDD
DDD is an abbreviation for Direct Distance Dialing (principally
USA, elsewhere STD)

DDL
DDL is an abbreviation for Document Description Language

DDN
DDN is an abbreviation for Defense
Data Network

DDP
DDP is an abbreviation for Distributed
Data Processing

DDS
DDS is an abbreviation for Dataphone Digital Service; Digital
Data Service; Direct Digital Service; Doctor of Dental Science; Doctor of Dental Surgery

DDT
DDT is an abbreviation for
DEC Debugging Tape; Dynamic Debugging Technique

DE
DE is an abbreviation for
Delaware

DEA
DEA is an abbreviation for Drug Enforcement Agency

DEAR
DEAR is an abbreviation for Department of
Energy Acquisition Regulation

DEC
DEC is an abbreviation for Digital Equipment Corporation

DECUS
DECUS is an abbreviation for Digital Equipment Corporation Users Society

DES
DES is an abbreviation for
Data Encryption Standard

DEW
DEW is an abbreviation for Distant
Early Warning (as in DEW Line)

DF
DF is an abbreviation for Damage Free

DFC
DFC is an abbreviation for Distinguished Flying
Cross

DFD
DFD is an abbreviation for
Data Flow Diagram

DFE
DFE is an abbreviation for
Data Flow Editor

DFM
DFM is an abbreviation for Distinguished Flying Medal

DFN
DFN is an abbreviation for Deutsche Forschungsnetz Verein (
German Research Network Association)

DFRF
DFRF is an abbreviation for
Dryden Flight Research Facility

DFS
DFS is an abbreviation for Depth-First Search

DFW
DFW is an abbreviation for Dallas-Ft.
Worth (regional airport)

DG
DG is an abbreviation for
Data General; Dei Gratia (by the grace of God); Director General

DGSC
DGSC is an abbreviation for Defense General Supply Center

DHHS
DHHS is an abbreviation for Department of Health and
Human Services

DHSS
DHSS is an abbreviation for Department of Health and Social Security (British); british Department of Health and Social Security

DIA
DIA is an abbreviation for Document Interchange Architecture

DIAD
DIAD is an abbreviation for (magnetic) Drum Information Assembler / Dispatcher

DIAL
DIAL is an abbreviation for Direct Information Access Line

DIAS
DIAS is an abbreviation for Defense Automatic Integrated System

DID
DID is an abbreviation for Direct Inward Dialing

DIF
DIF is an abbreviation for Document Interchange Format

DIN
DIN is an abbreviation for Deutsches Institut fur Normung

DIRE
DIRE is an abbreviation for Dire Is Really
Emacs

DIS
DIS is an abbreviation for Draft International
Standard

DISA
DISA is an abbreviation for
Data Interchange Standards Association

DISOSS
DISOSS is an abbreviation for Distributed Office Support System

DIY
DIY is an abbreviation for Do It Yourself

DJ
DJ is an abbreviation for Disc Jockey

DLA
DLA is an abbreviation for Defense Logistics Agency

DLI
DLI is an abbreviation for
Data Link Interface(?)

DLL
DLL is an abbreviation for
Data Link Layer; Dial Long Line equipment

DLO
DLO is an abbreviation for Dead Letter Office

DM
DM is an abbreviation for
Dungeon Master

DMA
DMA is an abbreviation for Direct Memory Access

DMD
DMD is an abbreviation for Doctor of Dental
Medicine

DME
DME is an abbreviation for Distance Measuring Equipment

DMF
DMF is an abbreviation for Probably part of an X.400 address in
Europe

DMOS
DMOS is an abbreviation for Diffusion
Metal Oxide Semiconductor (see MOS)

DMSP
DMSP is an abbreviation for Defense Meteorological Satellite Program

DMV
DMV is an abbreviation for Department of Motor Vehicles; Department of Motor Vehicles (Calif)

DMZ
DMZ is an abbreviation for DeMilitarized Zone

DNA
DNA is an abbreviation for DeoxyriboNucleic
Acid; Digital Network Architecture

DNCRI
DNCRI is an abbreviation for Division of Networking and Communications Research and Infrastructure

DNHR
DNHR is an abbreviation for Dynamic NonHierarchical Routing

DNIC
DNIC is an abbreviation for
Data Network Identification Code

DNIS
DNIS is an abbreviation for Dialed Number Identification Service (see also DID)

DNL
DNL is an abbreviation for Director of Naval Laboratories

DNR
DNR is an abbreviation for Dialed Number
Recorder

DNS
DNS is an abbreviation for
Domain Name System

DOA
DOA is an abbreviation for Dead On Arrival

DOB
DOB is an abbreviation for
Date Of Birth

DOC
DOC is an abbreviation for Dynamic Overload Control

DOD
DOD is an abbreviation for Department Of Defense

DOE
DOE is an abbreviation for Department of
Energy

DOHC
DOHC is an abbreviation for Dual OverHead Cams

DOMAIN
DOMAIN is an abbreviation for Distributed Operating Multi Access Interactive Network (
Apollo)

DOS
DOS is an abbreviation for Disk Operating System

DOT
DOT is an abbreviation for Department Of
Transportation

DOT&E
DOT&E is an abbreviation for Director, Operational Test and Evaluation

DOV
DOV is an abbreviation for
Data Over Voice

DOY
DOY is an abbreviation for
Day of Year

DP
DP is an abbreviation for
Data Processing; Dial Pulse; Displaced Persons (expelled from native land); Display Postscript; Double Penetration; Double Play; Draft Proposal

DPA
DPA is an abbreviation for Delegation of Procurement Authority

DPANS
DPANS is an abbreviation for Draft Proposed
American National Standard

DPI
DPI is an abbreviation for Dots Per
Inch

DPS
DPS is an abbreviation for Display PostScript

DQ
DQ is an abbreviation for Dairy
Queen; Dragon Quest

DQDB
DQDB is an abbreviation for Distributed Queue Dual Bus (
IEEE 802.6)

DQL
DQL is an abbreviation for Database Query Language

DR
DR is an abbreviation for Dead Reckoning; Dining Room

DRAM
DRAM is an abbreviation for Dynamic Random Access Memory (as opposed to
static RAM)

DRD
DRD is an abbreviation for
Data Reading Device

DRE
DRE is an abbreviation for Directional Reservation Equipment

DRG
DRG is an abbreviation for Democratic
Republic of Germany (East Germany)

DRI
DRI is an abbreviation for Defense Research Internet; Digital Research, Incorporated

DS
DS is an abbreviation for Double-Sided; Draft
Standard

DSA
DSA is an abbreviation for
Dial System Assistance

DSE
DSE is an abbreviation for
Data Structure Editor

DSEE
DSEE is an abbreviation for
Domain Software Engineering Environment

DSM
DSM is an abbreviation for Distinguished Service Medal

DSO
DSO is an abbreviation for Distinguished Service Order

DSP
DSP is an abbreviation for Decessit
Sine Prole (died without issue); Digital Signal Processing

DSRI
DSRI is an abbreviation for Digital
Standard Relational Interface

DSS
DSS is an abbreviation for Decision Support System; Direct Station Selection

DST
DST is an abbreviation for Daylight Saving
Time

DSTN
DSTN is an abbreviation for Double SuperTwisted Nematic

DSU
DSU is an abbreviation for Digital Service Unit

DT
DT is an abbreviation for Delirium Tremens

DTE
DTE is an abbreviation for
Data Terminal Equipment

DTF
DTF is an abbreviation for
Dial Tone First payphone

DTMF
DTMF is an abbreviation for
Dial Tone Multi Frequency

DTP
DTP is an abbreviation for DeskTop Publishing

DTR
DTR is an abbreviation for
Data Terminal Ready (EIA RS-232-C)

DUI
DUI is an abbreviation for Driving Under the Influence

DUT
DUT is an abbreviation for Device Under Test

DV
DV is an abbreviation for Deo Vo lente (God
willing)

DVM
DVM is an abbreviation for Digital
Volt Meter; Doctor of Veterinary Medicine

DWAPS
DWAPS is an abbreviation for Defense Warehousing Automated Processing System

DWI
DWI is an abbreviation for Died Without Issue; Driving While Intoxicated

DWIM
DWIM is an abbreviation for Do What I Mean

DX
DX is an abbreviation for Distance (as in long distance radio communication)

DXT
DXT is an abbreviation for
Data eXtractT facility

E
E is an abbreviation for
East; Espionage

E&EO
E&EO is an abbreviation for Errors and Omissions Excepted

E&M
E&M is an abbreviation for ``Ear and Mouth"; receive and transmit leads of a signalling system

E-MAIL
E-MAIL is an abbreviation for Electronic MAIL

e.g.
e.g. is an abbreviation for ??? (
Latin(?): for example)

EADASS
EADASS is an abbreviation for Engineering and Administrative
Data AcquiSition System

EAFB
EAFB is an abbreviation for
Edwards Air Force Base

EAN
EAN is an abbreviation for Certainly part of an X.400 Address in
Europe

EARN
EARN is an abbreviation for
European Academic Research Network

EAS
EAS is an abbreviation for Extended Area Service (or Engineering Admin. System)

EASI
EASI is an abbreviation for
European Academic Supercomputer Initiative (of IBM)

EBCDIC
EBCDIC is an abbreviation for Extended Binary Coded Decimal Interchange Code

EC
EC is an abbreviation for Exchange
Carrier

ECAFE
ECAFE is an abbreviation for Economic Commission for
Africa and the Far East

ECASS
ECASS is an abbreviation for Electronically Controlled Automatic Switching System;
Export Control Automated Support System

ECC
ECC is an abbreviation for Error Correction Code; Error Correction Code (corrects error in memory or transmission)

ECCM
ECCM is an abbreviation for Electronic Counter-CounterMeasures

ECDO
ECDO is an abbreviation for Electronic Community
Dial Office

ECG
ECG is an abbreviation for ElectroCardioGram

ECL
ECL is an abbreviation for Emitter Coupled Logic (see also
TTL)

ECLSS
ECLSS is an abbreviation for Environmental Control and Life Support System

ECM
ECM is an abbreviation for Electronic Counter Measure;
European Common Market

ECMA
ECMA is an abbreviation for
European Computer Manufacturers Association

ECO
ECO is an abbreviation for Ecological; Electronic
Central Office; Engineering Change Order

ECPA
ECPA is an abbreviation for Electronic Communications Privacy Act

ECS
ECS is an abbreviation for Environmental Control System

ECT
ECT is an abbreviation for ElectroConvulsive Therapy

ECV
ECV is an abbreviation for Electric Cargo Vehicle

ED&D
ED&D is an abbreviation for Expert Dungeons & Dragons

EDGAR
EDGAR is an abbreviation for Electronic
Data Gathering, Analysis, and Retrieval

EDI
EDI is an abbreviation for Electronic
Data Interchange

EDIF
EDIF is an abbreviation for Electronic Design Interchange Format

EDO
EDO is an abbreviation for Extended Duration Orbiter

EDP
EDP is an abbreviation for Electronic
Data Processing

EDS
EDS is an abbreviation for Electronic
Data Systems

EDT
EDT is an abbreviation for
Eastern Daylight Time

EDTA
EDTA is an abbreviation for
Ethylene Diamine Tetraacetic Acid

EDTCC
EDTCC is an abbreviation for Electronic
Data Transmission Communications Central

EE
EE is an abbreviation for Electrical Engineer; Electrical or Electronics Engineer

EEC
EEC is an abbreviation for
European Economic Community; European Economic Comunity

EEG
EEG is an abbreviation for ElectroEncephaloGram

EEL
EEL is an abbreviation for
Epsilon Extension Language

EEPROM
EEPROM is an abbreviation for Electrically Erasable Programmable
Read Only Memory

EFF
EFF is an abbreviation for Electronic
Frontier Foundation

EGA
EGA is an abbreviation for Enhanced Graphics Adapter

EGP
EGP is an abbreviation for Exterior
Gateway Protocol

EGRET
EGRET is an abbreviation for Energetic Gamma
Ray Experiment Telescope (on GRO)

EHF
EHF is an abbreviation for Extremely High Frequency (30-300GHz)

EIA
EIA is an abbreviation for Electronic Industries Association

EINE
EINE is an abbreviation for EINE Is Not
Emacs

EISA
EISA is an abbreviation for Extended Industry-Standard Architecture

EISS
EISS is an abbreviation for
European Intelligence Support System

EKG
EKG is an abbreviation for ElectroKardioGramm (see
ECG)

EL
EL is an abbreviation for ElectroLuminescent (as in display)

ELF
ELF is an abbreviation for Extremely Low Frequency

ELO
ELO is an abbreviation for Electric
Light Orchestra

ELP
ELP is an abbreviation for
Emerson, Lake and Palmer (or Powell)

ELV
ELV is an abbreviation for Expendable Launch Vehicle

EM
EM is an abbreviation for Enlisted
Man (see EW)

EMA
EMA is an abbreviation for Electronic Mail Association

EMACS
EMACS is an abbreviation for Editor MACroS; Eight Megabytes And Constantly Swapping

EMF
EMF is an abbreviation for ElectroMotive Force; ElectroMotive Force (voltage)

EMI
EMI is an abbreviation for ElectroMagnetic Interference

EMP
EMP is an abbreviation for Electromagnetic Pulse

EMPRESS
EMPRESS is an abbreviation for EnvironMental Pulse
Radiation Environment Simulator for Ships

EMR
EMR is an abbreviation for ElectroMagetic Response; ElectroMagnetic Response

EMS
EMS is an abbreviation for Electronic Message System; Extended Memory Specification

EMT
EMT is an abbreviation for Emergency Medical Technician

EMU
EMU is an abbreviation for ElectroMagnetic Unit; Extravehicular Mobility Unit

ENIAC
ENIAC is an abbreviation for Electronic Numerical Integrator and Calculator

ENS
ENS is an abbreviation for
ENSign

EO
EO is an abbreviation for End Office; Erasable Optical

EOF
EOF is an abbreviation for End Of File

EOM
EOM is an abbreviation for End Of
Month

EOS
EOS is an abbreviation for
Earth Observing System

EOWG
EOWG is an abbreviation for Engineering and Operations Working Group (under
FNC)

EP
EP is an abbreviation for Experience Points; Extended Play

EPA
EPA is an abbreviation for Environmental
Protection Agency

EPOS
EPOS is an abbreviation for Engineering and Project-management Oriented Support system

EPRI
EPRI is an abbreviation for Electric Power Research
Institute

EPROM
EPROM is an abbreviation for Erasable Programmable
Read Only Memory

EPS
EPS is an abbreviation for Encapsulated PostScript

EPT
EPT is an abbreviation for
Empire of the Petal Throne

EQ
EQ is an abbreviation for Educational Quotient (see
IQ)

ER
ER is an abbreviation for Emergency Room

ERA
ERA is an abbreviation for Earned Run Average; Entity-Relationship-Attribute; Equal Rights Amendment

ERD
ERD is an abbreviation for Entity-Relation Diagram

ERE
ERE is an abbreviation for Entity Relationship Editor

ERT
ERT is an abbreviation for
Earth Resources Technology

ES
ES is an abbreviation for Expert System

ESA
ESA is an abbreviation for
European Space Agency; European Space Agency

ESAC
ESAC is an abbreviation for Electronic Systems Assistance Center

ESDI
ESDI is an abbreviation for Enhanced
Standard Device Interface

ESE
ESE is an abbreviation for
East South East

ESF
ESF is an abbreviation for Extended Superframe Format

ESM
ESM is an abbreviation for Electronic Support Measures

ESnet
ESnet is an abbreviation for
Energy Sciences network (DoE)

ESO
ESO is an abbreviation for
European Southern Observatory; European Southern Observatory

ESP
ESP is an abbreviation for Extra Sensory
Perception

ESPS
ESPS is an abbreviation for Entropic Signal Processing System

ESS
ESS is an abbreviation for Electronic Switching System

ESSEX
ESSEX is an abbreviation for Experimental
Solid State EXchange

EST
EST is an abbreviation for
Eastern Standard Time

ET
ET is an abbreviation for (Shuttle) External
Tank; Eastern Time; Extra Terrestrial

ET/ACC
ET/ACC is an abbreviation for External Tank/Aft Cargo
Carrier (see also ET)

ETA
ETA is an abbreviation for Estimated
Time of Arrival

ETC
ETC is an abbreviation for
Et cetera, and so on...

ETD
ETD is an abbreviation for Estimated
Time of Departure

ETFD
ETFD is an abbreviation for Electronic
Toll Fraud Device

ETH
ETH is an abbreviation for Eidgn\:oessiche Technische Hochschule (
Swiss Federal Institute of Technology)

ETLA
ETLA is an abbreviation for Extended Three Letter
Acronym

ETO
ETO is an abbreviation for Earth-to-Orbit

ETR
ETR is an abbreviation for
Eastern Test Range

ETS
ETS is an abbreviation for Electronic Translator System

ETV
ETV is an abbreviation for Education
TeleVision

EUUG
EUUG is an abbreviation for
European Unix User Group

EUV
EUV is an abbreviation for Extreme UltraViolet; Extreme UltraViolet

EUVE
EUVE is an abbreviation for Extreme UltraViolet Explorer

EVA
EVA is an abbreviation for ExtraVehicular Activity; ExtraVehicular Activity

EVX
EVX is an abbreviation for Electronic Voice eXchange

EW
EW is an abbreviation for Electronic Warfare; Enlisted Woman (see
EM)

EWOS
EWOS is an abbreviation for
European Workshop for Open Systems

FA
FA is an abbreviation for
Football Association (British soccer--a word derived from Association)

FAA
FAA is an abbreviation for Federal Aviation Agency

FACD
FACD is an abbreviation for Foreign Area Customer Dialing

FAO
FAO is an abbreviation for Food and Agriculture Organization

FAQ
FAQ is an abbreviation for Frequently Asked Questions

FAR
FAR is an abbreviation for Federal Acquisition Regulations

FAS
FAS is an abbreviation for Foreign Agricultural Service; Free Alongside
Ship

FASST
FASST is an abbreviation for Flexible Architecture
Standard System Technology

FAST
FAST is an abbreviation for Fast Auroral SnapshoT explorer

FAT
FAT is an abbreviation for Foreign Area Translation

FAX
FAX is an abbreviation for FAcsimile

FB
FB is an abbreviation for Freight Bill

FBI
FBI is an abbreviation for Federal
Bureau of Investigation

FCC
FCC is an abbreviation for Federal Communications Commission; Federal
Computer Conference

FCCSET
FCCSET is an abbreviation for Federal Coordinating Committee for Science, Education and Technology (under
OSTP)

FCO
FCO is an abbreviation for Field Change Order; Frequency Controlled Oscillator

FCS
FCS is an abbreviation for Frame Check Sequence

FDA
FDA is an abbreviation for Food and Drug Administration

FDDI
FDDI is an abbreviation for Fiber Digital
Data Interface; Fiber Distributed Data Interface

FDHD
FDHD is an abbreviation for Floppy Drive High
Density

FDIC
FDIC is an abbreviation for Federal
Deposit Insurance Corporation; Federal Deposit Insurance Corporation

FDM
FDM is an abbreviation for Frequency Division Multiplexing

FDR
FDR is an abbreviation for
Franklin Delano Roosevelt

FE
FE is an abbreviation for Field Engineer (see also
CE, SE)

FEA
FEA is an abbreviation for Finite
Element Analysis

FEDSIM
FEDSIM is an abbreviation for FEDeral Systems Integration and Management center

FEMA
FEMA is an abbreviation for Federal Emergency Management Agency

FEMF
FEMF is an abbreviation for Foreign
EMF

FEPC
FEPC is an abbreviation for Fair Employment Practices Commission

FEPG
FEPG is an abbreviation for Federal Engineering Planning Group (of
FNC under EOWG, originally of FRICC)

FERS
FERS is an abbreviation for Federal Employees Retirement System

FET
FET is an abbreviation for Federal
Excise Tax; Field Effect Transistor

FFA
FFA is an abbreviation for Future
Farmers of America

FFT
FFT is an abbreviation for Fast Fourier Transform; Fast Fourier Transform

FG-A
FG-A is an abbreviation for Feature Group A

FG-B
FG-B is an abbreviation for Feature Group B

FG-D
FG-D is an abbreviation for Feature Group D

FGS
FGS is an abbreviation for Fine Guidance Sensors

FHA
FHA is an abbreviation for Federal
Home Administration; Future Homemakers of America

FIB
FIB is an abbreviation for Focused
Ion Beam

FICA
FICA is an abbreviation for Federal Insurance Contributions Act

FIDO
FIDO is an abbreviation for
Fog Investigation Dispersal Operation

FIFO
FIFO is an abbreviation for First In First Out (as in registers and buffers)

FILO
FILO is an abbreviation for First In Last Out (see also
FIFO)

FIMS
FIMS is an abbreviation for Forms
Interface Management System

FINE
FINE is an abbreviation for FINE Is Not
Emacs

FIO
FIO is an abbreviation for Frequency In and Out

FIPS
FIPS is an abbreviation for Federal Information Processing
Standard

FIR
FIR is an abbreviation for Far InfraRed; Finite Impulse Response

FIRMR
FIRMR is an abbreviation for Federal Information Resource Management Regulation

FIT
FIT is an abbreviation for Federal Information Technologies, inc.

FITS
FITS is an abbreviation for Flexible Image Transport System

FIX
FIX is an abbreviation for Federal Inter-agency eXchange

FL
FL is an abbreviation for
Florida

FLACC
FLACC is an abbreviation for Full Level
Algol Checkout Compiler

FLL
FLL is an abbreviation for Fixed Loss Loop

FLOP
FLOP is an abbreviation for FLoating point OPeration

FLOPS
FLOPS is an abbreviation for FLoating-point OPerations per Second

FLRA
FLRA is an abbreviation for Federal Labor Relations Authority

FM
FM is an abbreviation for Frequency
Modulation

FMB
FMB is an abbreviation for Federal Maritime Board

FMCS
FMCS is an abbreviation for Federal Mediation and
Conciliation Service

FMR
FMR is an abbreviation for Follow
Me Roaming

FMS
FMS is an abbreviation for Financial Management Service (Treasury Dept); Forms Management System

FNC
FNC is an abbreviation for Federal Networking
Council (formerly FRICC) (under OSTP)

FO
FO is an abbreviation for Foreign Office;
Forward Observer

FOAC
FOAC is an abbreviation for Federal Office Automation Center

FOB
FOB is an abbreviation for Free On Board; Full Of
Bull

FOC
FOC is an abbreviation for Faint Object Camera; Free Of Charge

FOIA
FOIA is an abbreviation for
Freedom Of Information Act

FOIMS
FOIMS is an abbreviation for Field Office Information Management System

FOOBAR
FOOBAR is an abbreviation for See
FUBAR

FOR
FOR is an abbreviation for Free On
Rail

FORCS
FORCS is an abbreviation for
Faa's Operational Reporting Communication System

FORD
FORD is an abbreviation for
Fix Or Repair Daily; Found On Road Dead

FORTRAN
FORTRAN is an abbreviation for FORmula TRANslator

FOS
FOS is an abbreviation for Faint Object Spectrograph

FOSE
FOSE is an abbreviation for Federal Office Systems Exposition

FOT
FOT is an abbreviation for Free On Truck

FOV
FOV is an abbreviation for Field Of View

FPA
FPA is an abbreviation for Floating
Point Accelerator

FPC
FPC is an abbreviation for
Fish Protein Concentrate

FPE
FPE is an abbreviation for Floating
Point Engine

FPHA
FPHA is an abbreviation for Federal Public Housing Authority

FPLA
FPLA is an abbreviation for Field Programmable Logic Array (see
PLA)

FPM
FPM is an abbreviation for Feet Per Minute

FPO
FPO is an abbreviation for Field
Post Office; Fleet Post Office

fps
fps is an abbreviation for Feet Per Second

FPU
FPU is an abbreviation for Floating
Point Unit

FQDN
FQDN is an abbreviation for Fully Qualified
Domain Name

FR
FR is an abbreviation for Frame Relay

FRACTAL
FRACTAL is an abbreviation for FRACTional dimensionAL

FRED
FRED is an abbreviation for Fred Resembles
Emacs Deliberately

FRG
FRG is an abbreviation for Federal
Republic of Germany (West Germany)

FRICC
FRICC is an abbreviation for Federal Research Internet Coordinating Committee

FROG
FROG is an abbreviation for Free
Rocket Over Ground

FRPG
FRPG is an abbreviation for Fantasy Role Playing Game

FRS
FRS is an abbreviation for Federal
Reserve System

FS
FS is an abbreviation for Field Service; File System; Full
Standard

FSF
FSF is an abbreviation for Free Software Foundation

FSK
FSK is an abbreviation for Frequency Shift Keying

FSLIC
FSLIC is an abbreviation for Federal Savings and Loan Insurance Corporation

FSS
FSS is an abbreviation for Federal Supply Service

FSW
FSW is an abbreviation for
Forward Swept Wings

Ft
Ft is an abbreviation for Foot

FTAM
FTAM is an abbreviation for File Transfer And Management (
ISO upscale FTP)

FTC
FTC is an abbreviation for Federal
Trade Commission

FTL
FTL is an abbreviation for Faster Than
Light

FTP
FTP is an abbreviation for File Transfer Protocol

FTS
FTS is an abbreviation for Federal Telecommunications System; Flight Telerobotic Servicer

FUBAR
FUBAR is an abbreviation for Fucked
Up Beyond All Recognition/Repair; Fouled Up Beyond All Recognition/Repair

FUSE
FUSE is an abbreviation for Far Ultraviolet Spectroscopic Explorer

FW
FW is an abbreviation for Fringeworthy

FWD
FWD is an abbreviation for Front Wheel Drive

FWHM
FWHM is an abbreviation for Full Width at Half Maximum

FX
FX is an abbreviation for Foriegn eXchange

FY
FY is an abbreviation for Fiscal Year

FYI
FYI is an abbreviation for For Your Information

G
G is an abbreviation for General audiences;
Gravity

GA
GA is an abbreviation for Gamblers Anonymous; General Assembly; General Average; General of the
Army; Georgia

GAAP
GAAP is an abbreviation for Generally Accepted Accounting Principles

GAB
GAB is an abbreviation for Group Audio Bridging

Gaia
Gaia is an abbreviation for
Earth's self-sustaining Biosphere

GAN
GAN is an abbreviation for Global Area Network

GAO
GAO is an abbreviation for General Accounting Office

GAR
GAR is an abbreviation for Grand
Army of the Republic

GARR
GARR is an abbreviation for Gruppo Arminizzazione Rete
por la Ricerca (Italian Research Network Harmonization Group)

GAS
GAS is an abbreviation for Get-Away Special

GATT
GATT is an abbreviation for General Agreement on Tariffs and
Trade

GAW
GAW is an abbreviation for Guaranteed Annual Wage; Guarenteed Annual Wage

GB
GB is an abbreviation for Gangbusters; GigaByte; Great
Britain

GBIP
GBIP is an abbreviation for General Purpose
Interface Bus

GBT
GBT is an abbreviation for
Green Bank Telescope

GC
GC is an abbreviation for Garbage Collection; Gas Chromatograph (or Chromatography)

GCA
GCA is an abbreviation for Ground Controlled Approach

GCC
GCC is an abbreviation for
Gnu C Compiler

GCD
GCD is an abbreviation for Ground Controlled Descent

GCL
GCL is an abbreviation for Graphics Command Language

GCM
GCM is an abbreviation for General
Court Martial

GCR
GCR is an abbreviation for Group-Coded Recording (magnetic tape, 6250
bpi)

GCT
GCT is an abbreviation for
Greenwich Civil Time

GCVS
GCVS is an abbreviation for General Catalog of Variable
Stars

GDB
GDB is an abbreviation for
Gnu DeBugger

GDP
GDP is an abbreviation for
Gross Domestic Product

GDS
GDS is an abbreviation for Great Dark
Spot

GE
GE is an abbreviation for General Electric

GEM
GEM is an abbreviation for Giotto Extended
Mission; Graphics Environment Manager

GEO
GEO is an abbreviation for Geosynchronous
Earth Orbit

GHQ
GHQ is an abbreviation for General HeadQuarters

GHRS
GHRS is an abbreviation for
Goddard High Resolution Spectrograph

GHz
GHz is an abbreviation for Giga HertZ (unit of frequency, 1,000,000,000 cycles per second)

GI
GI is an abbreviation for Galvanized
Iron; Gastro Intestinal (as in upper GI); General Issue; Government Issue

GID
GID is an abbreviation for Group
ID

GIF
GIF is an abbreviation for Graphics Interchange Format

GIGO
GIGO is an abbreviation for Garbage In Garbage Out

GIN
GIN is an abbreviation for Graphics INput

GISS
GISS is an abbreviation for
Goddard Institute for Space Studies

GKS
GKS is an abbreviation for Graphical Kernel
Standard; Graphics Kernel System

GM
GM is an abbreviation for Game Master; General Manager; General Motors; Guided Missile

GMBH
GMBH is an abbreviation for Gesellschaft
Mit Beschraenkter Haftung

GMC
GMC is an abbreviation for Giant Molecular
Cloud

GMD
GMD is an abbreviation for Gesellschaft f\:
ur Mathematik und Datenverarbeitung (German Institute for Mathematics and Data Processing)

GMRT
GMRT is an abbreviation for Giant Meter-wave Radio
Telescope

GMT
GMT is an abbreviation for
Greenwich Mean Time (also called UT)

GNP
GNP is an abbreviation for
Gross National Product

GNU
GNU is an abbreviation for GNU's Not
Unix

GOES
GOES is an abbreviation for Geostationary Orbiting Environmental Satellite; Geostationary Orbiting Environmental Satellites

GOSIP
GOSIP is an abbreviation for Government
OSI Profile; Government Open Systems Interconnection Profile (calls for government procurement of ISO/CCITT products)

GP
GP is an abbreviation for General Practitioner; General Purpose

GPC
GPC is an abbreviation for General Purpose
Computer

GPI
GPI is an abbreviation for Graphics Programming
Interface

GPIB
GPIB is an abbreviation for General Purpose
Interface Bus; General-Purpose Interface Bus

GPL
GPL is an abbreviation for
GNU General Public Licence

GPO
GPO is an abbreviation for General
Post Office; Government Printing Office

GPS
GPS is an abbreviation for Global Positioning System; Global Positioning System

GQ
GQ is an abbreviation for General Quarters

GRB
GRB is an abbreviation for Gamma
Ray Burst(er)

GREP
GREP is an abbreviation for Global Regular Expression Print

GRO
GRO is an abbreviation for Gamma
Ray Observatory

GRS
GRS is an abbreviation for Gamma
Ray Spectrometer (on Mars Observer); Great Red Spot

GS
GS is an abbreviation for General Schedule; Glide Slope

GSA
GSA is an abbreviation for General Services Administration; General Services Adminstration; Girl Scouts of
America

GSBCA
GSBCA is an abbreviation for General Services administration Board of
Contract Appeals

GSC
GSC is an abbreviation for Guide
Star Catalog (for HST)

GSFC
GSFC is an abbreviation for
Goddard Space Flight Center

GSI
GSI is an abbreviation for Gesellschaft f\:
ur Schwerionenforschung (German Federal Research Institute for Heavy Ion Research)

GSM
GSM is an abbreviation for Global System
Mobile; Groupe Speciale Mobile (Committee Designing preceding)

GSTS
GSTS is an abbreviation for Ground-based Surveillance and Tracking System

GT
GT is an abbreviation for
Gross Ton

GTE
GTE is an abbreviation for General
Telephone and Electric

GTO
GTO is an abbreviation for Geostationary Transfer
Orbit

GTSI
GTSI is an abbreviation for Government Technology Services, inc.

GUI
GUI is an abbreviation for Graphical User
Interface

GW
GW is an abbreviation for Gamma World

GWEN
GWEN is an abbreviation for Ground Wave Emergency Network

GWM
GWM is an abbreviation for Generic Window Manager

H
H is an abbreviation for Harn; Height

HACD
HACD is an abbreviation for
Home Area Customer Dialing

HAL
HAL is an abbreviation for Heuristically programmed ALgorithmic
computer (movie 2001)

HAM
HAM is an abbreviation for Hold And Modify

HAO
HAO is an abbreviation for High
Altitude Observatory

Hb
Hb is an abbreviation for HemogloBin

HBM
HBM is an abbreviation for Her British Majesty; His British Majesty

HBO
HBO is an abbreviation for
Home Box Office

HC
HC is an abbreviation for Holy Communion;
House of Commons

HCFA
HCFA is an abbreviation for Health
Care Financing Administration

HCFC
HCFC is an abbreviation for hydrochlorofluorocarbon

HCL
HCL is an abbreviation for High Cost of Living

HD
HD is an abbreviation for Hard Disk; Heavy Duty;
Henry Draper catalog entry

HDA
HDA is an abbreviation for Head Disk Assembly (in
winchester disk drives)

HDBV
HDBV is an abbreviation for Host
Data Base View

HDL
HDL is an abbreviation for High
Density Lipoprotein

HDLC
HDLC is an abbreviation for High-level
Data Link Control

HDTV
HDTV is an abbreviation for High Definition
Television

HE
HE is an abbreviation for His
Eminence; His Excellency

HEAO
HEAO is an abbreviation for High
Energy Astronomical Observatory

HEDM
HEDM is an abbreviation for High Energy-Density Matter

HEMP
HEMP is an abbreviation for Help End Marijuana Prohibition

HEO
HEO is an abbreviation for High
Earth Orbit

HEPnet
HEPnet is an abbreviation for High
Energy Physics network

HERO
HERO is an abbreviation for Hazards of Electromagnetic
Radiation to Ordnance

HF
HF is an abbreviation for High Fantasy; High Frequency (3-30MHz)

HFE
HFE is an abbreviation for
Human Factors Engineering

HFS
HFS is an abbreviation for Hierarchical File System

HGA
HGA is an abbreviation for High Gain
Antenna

HHS
HHS is an abbreviation for (US Department of) Health and
Human Services

HI
HI is an abbreviation for
Hawaii

HIIPS
HIIPS is an abbreviation for
Hud Integrated Information Processing Services

HLC
HLC is an abbreviation for Heavy Lift Capability

HLL
HLL is an abbreviation for High-Level Language

HLV
HLV is an abbreviation for Heavy Lift Vehicle

HMC
HMC is an abbreviation for
Halley Multicolor Camera (on Giotto)

HMOS
HMOS is an abbreviation for High performance
Metal Oxide Semiconductor (see MOS)

HMS
HMS is an abbreviation for His/Her Majesty's
Ship

HMT
HMT is an abbreviation for His/Her Majesty's Transport

HNPA
HNPA is an abbreviation for
Home Numbering Plan Area

HOBIS
HOBIS is an abbreviation for HOtel Billing Information System

HOL
HOL is an abbreviation for High-Order System

HOTOL
HOTOL is an abbreviation for HOrizontal Take-Off and Landing

HP
HP is an abbreviation for
Hewlett Packard, Inc.; High Pressure; Higher Power (sort of an AA "in" term, usually God); Hit Points; HorsePower

HPGe
HPGe is an abbreviation for High Purity
Germanium

HPL/T
HPL/T is an abbreviation for High-Productivity Languages/Tools

HQ
HQ is an abbreviation for HeadQuarters

HR
HR is an abbreviation for Hertzsprung-Russell (diagram);
House of Representatives

HRH
HRH is an abbreviation for Her
Royal Highness; His Royal Highness

HRI
HRI is an abbreviation for High Resolution Imager (on
ROSAT)

HS
HS is an abbreviation for High School

HSB
HSB is an abbreviation for Hue, Saturation, Brightness

HSP
HSP is an abbreviation for High Speed Photometer

HST
HST is an abbreviation for Hawaiian
Standard Time; Hubble Space Telescope

HT
HT is an abbreviation for High Tension (as in electric power transmission)

HTK
HTK is an abbreviation for Hits To Kill

HUAC
HUAC is an abbreviation for
House Unamerican Activities Committee

HUD
HUD is an abbreviation for Heads
Up Display; Housing and Urban Development

HUPD
HUPD is an abbreviation for
Harvard University Police Department

HUT
HUT is an abbreviation for
Hopkins Ultraviolet Telescope (ASTRO package)

HV
HV is an abbreviation for High Voltage

HVAC
HVAC is an abbreviation for Heating, Ventilation, and
Air Conditioning

HW2000
HW2000 is an abbreviation for Highway 2000

HWM
HWM is an abbreviation for High-Water Mark

Hz
Hz is an abbreviation for HertZ (unit of frequency, cycles per second)

I/O
I/O is an abbreviation for Input/Output

IAB
IAB is an abbreviation for Internet Activities Board

IAEA
IAEA is an abbreviation for International Atomic
Energy Agency

IANA
IANA is an abbreviation for Internet Assigned Numbers Authority (IANA@ISI.EDU)

IATA
IATA is an abbreviation for International
Air Transport Association

IAU
IAU is an abbreviation for International Astronomical
Union

IAUC
IAUC is an abbreviation for
IAU Circular

IBM
IBM is an abbreviation for Ingrained Batch Mentality; International Business Machines, Inc.; Itty Bitty Machines

IBT
IBT is an abbreviation for
Illinois Bell Telephone

IC
IC is an abbreviation for Integrated
Circuit; Interexchange Carrier (see also IEC, IXC)

ICB
ICB is an abbreviation for Interstate
Computer Bank

ICBM
ICBM is an abbreviation for InterContinental Ballistic Missile

ICE
ICE is an abbreviation for In-Circuit Emulator; International Cometary Explorer

ICI
ICI is an abbreviation for
Imperial Chemical Industries

ICJ
ICJ is an abbreviation for International
Court of Justice

ICL
ICL is an abbreviation for International Computers Ltd.

ICMP
ICMP is an abbreviation for Internet Control Message Protocol

ICP
ICP is an abbreviation for Integrated Channel Processor; Inventory Control Points

ICRC
ICRC is an abbreviation for International
Cosmic Ray Conference

ID
ID is an abbreviation for IDentification;
Idaho

IDA
IDA is an abbreviation for Intercommunication
Data Areas; International Dark-sky Association; International Development Association

IDDD
IDDD is an abbreviation for International Direct Distance
Dial

IDE
IDE is an abbreviation for Interactive Development Environments, inc

IDF
IDF is an abbreviation for Intermediate Distributing Frame

IDL
IDL is an abbreviation for Interactive
Data Language

IDV
IDV is an abbreviation for Interlibrational Derived Vehicle

IE
IE is an abbreviation for Indo-European

IEC
IEC is an abbreviation for Inter-Exchange
Carrier (see also IC, IXC)

IEE
IEE is an abbreviation for
Institute of Electrical Engineers

IEEE
IEEE is an abbreviation for
Institute of Electrical and Electronic Engineers

IETF
IETF is an abbreviation for Internet Engineering Task Force

IF
IF is an abbreviation for Intermediate Frequency (as in IF stage)

IFB
IFB is an abbreviation for Invitation For Bids

IFC
IFC is an abbreviation for International Finance Corporation; International Freighting Corporation

IFF
IFF is an abbreviation for Identification -
Friend or Foe; Interchange File Format

IFLA
IFLA is an abbreviation for International
Federation of Library Associations

IFR
IFR is an abbreviation for Instrument Flight Rules

IGES
IGES is an abbreviation for Initial Graphics Exchange
Standard

IGM
IGM is an abbreviation for InterGalactic Medium

IGY
IGY is an abbreviation for International Geophysical Year; International Geophysical Year

IHP
IHP is an abbreviation for Indicated
HorsePower

IHS
IHS is an abbreviation for Integrated
Hospital Support

IIA
IIA is an abbreviation for Information
Industry Association

IIE
IIE is an abbreviation for
Institute of Industrial Engineers

IIHF
IIHF is an abbreviation for International
Ice Hockey Federation

IIL
IIL is an abbreviation for Integrated Injection Logic

ILO
ILO is an abbreviation for International Labor Organization

ILS
ILS is an abbreviation for Instrument Landing System

ILV
ILV is an abbreviation for Industrial Launch Vehicle

IMF
IMF is an abbreviation for International Monetary Fund

IMHO
IMHO is an abbreviation for In My
Humble Opinion

IMO
IMO is a
computer jargon abbreviation for In My Opinion

IMP
IMP is an abbreviation for
Interface Message Processor (replaced by PSN)

IMSL
IMSL is an abbreviation for International Mathematical Subroutine Library

IN
IN is an abbreviation for
Indiana

INADS
INADS is an abbreviation for INitialization and ADministration System

INRA
INRA is an abbreviation for Iesus Nazerenus
Rex Iudaeorum (Jesus of Nazareth, King of the Jews)

INRIA
INRIA is an abbreviation for Institut National de Recherche en Informatique
et Automatique

INS
INS is an abbreviation for Immigration and Naturalization Service

INSTITUTE
INSTITUTE is an abbreviation for INSTITUTE's Name Shows That It's Totally Unrelated To
EMACS

INTAP
INTAP is an abbreviation for INteroperability Technology Association for information Processing

INWATS
INWATS is an abbreviation for INward Wide Area
Telephone Service

IO
IO is an abbreviation for Input/Output (sometimes
I/O)

IOC
IOC is an abbreviation for International Operating Center

IOD
IOD is an abbreviation for Identified Outward Dialing

IOOF
IOOF is an abbreviation for International Order of Odd Fellows

IOTA
IOTA is an abbreviation for Infrared-Optical
Telescope Array; International Occultation Timing Association

IOU
IOU is an abbreviation for I Owe you(U)

IP
IP is an abbreviation for Information Provider; Innings Pitched; Intermediate
Point; Internet Protocol

IPC
IPC is an abbreviation for Inter-Process Communication

IPE
IPE is an abbreviation for Integrated Programming Environment

IPMS
IPMS is an abbreviation for InterPersonal Message Services

IPS
IPS is an abbreviation for Inertial Pointing System; Information Processing Standards

IPSE
IPSE is an abbreviation for Integrated Project-Support Environment

IQ
IQ is an abbreviation for Intelligence Quotient (see
EQ)

IR
IR is an abbreviation for
Index Register; Infra-Red

IRA
IRA is an abbreviation for Individual Retirement Account;
Irish Republican Army

IRAF
IRAF is an abbreviation for Image Reduction and Analysis Facility

IRAS
IRAS is an abbreviation for InfraRed Astronomical Satellite

IRBM
IRBM is an abbreviation for Intermediate
Range Ballistic Missile

IRDS
IRDS is an abbreviation for Information Resource Dictionary
Standard; InfraRed Detection Set

IRE
IRE is an abbreviation for
Institute of Radio Engineers (old name for the now IEEE, which see)

IRM
IRM is an abbreviation for Information Resources Management

IRMS
IRMS is an abbreviation for Information Resources Management Service

IRS
IRS is an abbreviation for Internal Revenue Service

IRTF
IRTF is an abbreviation for Internet Research Task Force

IS
IS is an abbreviation for Information Systems; International
Standard (Beyond the DIS Stage)

ISA
ISA is an abbreviation for Industry-Standard Architecture

ISAM
ISAM is an abbreviation for Indexed Sequential Access Method

ISAS
ISAS is an abbreviation for
Institute of Space and Astronautical Science (Japan)

ISBD
ISBD is an abbreviation for International Bibliographic Description

ISC
ISC is an abbreviation for Information Services Center; International Switching Center

ISCH
ISCH is an abbreviation for Interstitial-Cell-Stimulating
Hormone (same as LH)

ISDN
ISDN is an abbreviation for Integrated Services Digital Network

ISDT
ISDT is an abbreviation for Integrated Systems Development
Tool

ISEE
ISEE is an abbreviation for International
Sun Earth Explorer (usually ISEE-3)

ISF
ISF is an abbreviation for Information Systems Factory

ISFUG
ISFUG is an abbreviation for Integrated Software Federal User Group

ISI
ISI is an abbreviation for Information Sciences
Institute

ISM
ISM is an abbreviation for InterStellar Medium

ISO
ISO is an abbreviation for Infrared Space Observatory; International Organization for Standardization ; International Standards Organization

ISODE
ISODE is an abbreviation for
ISO Development Environment

ISOO
ISOO is an abbreviation for Information Security Oversight Office

ISPM
ISPM is an abbreviation for International Solar
Polar Mission; International Solar Polar Mission (now Ulysses)

ISR
ISR is an abbreviation for
Institute of Snow Research

ISRG
ISRG is an abbreviation for
Independent Space Research Group

ISV
ISV is an abbreviation for
Independent Software Vendor

ISY
ISY is an abbreviation for International Space Year

IT
IT is an abbreviation for Industrial Technology; Information Technology

ITC
ITC is an abbreviation for Inter-Task Communication

ITS
ITS is an abbreviation for Incompatible Timesharing System

ITT
ITT is an abbreviation for International
Telephone and Telegraph

ITU
ITU is an abbreviation for International Telecommunications
Union

ITUSA
ITUSA is an abbreviation for IT Users Standards Association

IUE
IUE is an abbreviation for International Ultraviolet Explorer

IUS
IUS is an abbreviation for Inertial
Upper Stage; Inertial Upper Stage

IUV
IUV is an abbreviation for Interlibrational Utility Vehicle

IXC
IXC is an abbreviation for Inter-eXchange
Carrier (see also IC, IEC)

IXI
IXI is an abbreviation for International (pan-European) X.25 Infrastructure

JACM
JACM is an abbreviation for Journal of the Association for Computing Machinery

JANET
JANET is an abbreviation for
Joint Academic Network (UK)

JBS
JBS is an abbreviation for John
Birch Society

JC
JC is an abbreviation for Jesus Christ;
Joint Compound (plumbing); Julius Caesar; Junior College

JCA
JCA is an abbreviation for Jewelry Crafts Association

JCAC
JCAC is an abbreviation for
Joint Civil Affairs Committee

JCAE
JCAE is an abbreviation for
Joint Committee on Atomic Energy

JCEE
JCEE is an abbreviation for
Joint Council on Economic Education

JCET
JCET is an abbreviation for
Joint Council on Educational Television

JCS
JCS is an abbreviation for
Joint Chiefs of Staff

JD
JD is an abbreviation for
Justice Department

JDS
JDS is an abbreviation for John
Dewey Society

JEM
JEM is an abbreviation for Japanese
Experiment Module (for SSF)

JES
JES is an abbreviation for John Ericsson Society

JET
JET is an abbreviation for
Joint European Torus (fusion research)

JFK
JFK is an abbreviation for John F.
Kennedy; John F. Kennedy (international airport)

JFMIP
JFMIP is an abbreviation for
Joint Financial Management Improvement Program

JGR
JGR is an abbreviation for Journal of Geophysical Research; Journal of Geophysical Research

JI
JI is an abbreviation for
Justice, Inc.

JIC
JIC is an abbreviation for
Joint Intelligence Center; Just in Case

JILA
JILA is an abbreviation for
Joint Institute for Laboratory Astrophysics

JIM
JIM is an abbreviation for Job Information Memorandum

JINTACCS
JINTACCS is an abbreviation for
Joint INteroperability of TActical Command and Control Systems

JIS
JIS is an abbreviation for
Japan Industrial Standards

JISC
JISC is an abbreviation for Japanese Industrial Standards Committee

JIT
JIT is an abbreviation for Just In
Time

JMS
JMS is an abbreviation for John
Milton Society

JNT
JNT is an abbreviation for
Joint Network Team (UK)

JO
JO is an abbreviation for Job Order;
Junior Officer

JOVE
JOVE is an abbreviation for Jonathan's Own Version of
Emacs

JOVIAL
JOVIAL is an abbreviation for Jules Own Version of the International Algorithmic Language

JPL
JPL is an abbreviation for
Jet Propulsion Laboratory; Jet Propulsion Laboratory

JRC
JRC is an abbreviation for
Junior Red Cross

JSC
JSC is an abbreviation for
Johnson Space Center; Johnson Space Center (NASA)

JSD
JSD is an abbreviation for
Jackson System Development

JSRC
JSRC is an abbreviation for
Joint Services Review Committee

JTIDS
JTIDS is an abbreviation for
Joint Tactical Information Distribution Systems

JV
JV is an abbreviation for
Junior Varsity

JvNC
JvNC is an abbreviation for John von Neumann (Super
Computer) Center

JvNCnet
JvNCnet is an abbreviation for John von Neumann (Super
Computer) Center network

K
K is an abbreviation for Kilo- (metric 1000)

K&R
K&R is an abbreviation for Kernighan and Ritchie, the c programming language

K9
K9 is an abbreviation for canine (K9 corps -
army dogs)

KAIST
KAIST is an abbreviation for Korean Advanced
Institute of Science and Technology

KAO
KAO is an abbreviation for Kuiper Airborne Observatory

KB
KB is an abbreviation for KiloByte

KC
KC is an abbreviation for
King's Counsel (QC when queen reigning); Knights of Columbus

KD
KD is an abbreviation for
Kiln Dried; Knocked Down

KDCI
KDCI is an abbreviation for Key Display Call Indicator

KERMIT
KERMIT is an abbreviation for Kl-10 Error-free Reciprocal
Micro Interconnect over Tty lines

KET
KET is an abbreviation for
Kentucky Educational Television

KHz
KHz is an abbreviation for Kilo HertZ (unit of frequency, 1000 cycles per second)

KI
KI is an abbreviation for Kiwanis International

KIA
KIA is an abbreviation for Killed In
Action

KIAS
KIAS is an abbreviation for
Knot Indicated Air Speed

Km
Km is an abbreviation for Kilometers

KO
KO is an abbreviation for Knock Out

KP
KP is an abbreviation for Key Pulse; Kitchen Police

KPNO
KPNO is an abbreviation for Kitt
Peak National Observatory

KPO
KPO is an abbreviation for KeyPunch Operator

KQC
KQC is an abbreviation for
King's College London

KS
KS is an abbreviation for
King's Scholar

KSC
KSC is an abbreviation for
Kennedy Space Center (NASA)

KSU
KSU is an abbreviation for Key System Unit

KTB
KTB is an abbreviation for Cretaceous-Tertiary Boundary (from
German)

KTS
KTS is an abbreviation for Key
Telephone System

KTU
KTU is an abbreviation for Key
Telephone Unit

KWIC
KWIC is an abbreviation for Key Word In Context

KY
KY is an abbreviation for
Kentucky

L1
L1 is an abbreviation for
Lagrange Point #1 35,000 Miles above moon

L2
L2 is an abbreviation for
Lagrange Point #2 40,000 Miles behind moon

L3
L3 is an abbreviation for
Lagrange Point #3 (?? 35,000 Miles below moon)

L4
L4 is an abbreviation for
Lagrange Point #4 240,000 mile Earth orbit

L5
L5 is an abbreviation for
Lagrange Point #5 240,000 mile Earth orbit

LA
LA is an abbreviation for Los Angeles;
Louisiana; Low Altitude

LADAR
LADAR is an abbreviation for
LAser Detection And Ranging

LAM
LAM is an abbreviation for Master of
Liberal Arts

LAMA
LAMA is an abbreviation for Local Automatic Message Accounting

LAN
LAN is an abbreviation for Local Apparent Noon; Local Area Network

LANL
LANL is an abbreviation for Los Alamos (
NM) National Laboratory; Los Alamos National Laboratory

LAPB
LAPB is an abbreviation for
Link Access Procedure (Balanced)

LAPD
LAPD is an abbreviation for
Link Access Procedure (??); Los Angeles (CA, US) Police Department

LAR
LAR is an abbreviation for Local Acquisition
Radar

LaRC
LaRC is an abbreviation for
Langley Research Center (NASA)

LASER
LASER is an abbreviation for
Light Amplification by Stimulated Emission of Radiation

LAT
LAT is an abbreviation for Local Apparent
Time

LATA
LATA is an abbreviation for Local Access and Transport Area

LAX
LAX is an abbreviation for Los Angeles International Airport

LB
LB is an abbreviation for
Light Bomber; pound (LiBra)

LBHS
LBHS is an abbreviation for Long
Beach High School

LBL
LBL is an abbreviation for
Lawrence Berkeley (Calif.) Labs

LBS
LBS is an abbreviation for Pounds

LC
LC is an abbreviation for inductor-Capacitor
circuit (as in filters, L is symbol inductance)

LCD
LCD is an abbreviation for Liquid
Crystal Display; Lowest Common Denominator

LCDR
LCDR is an abbreviation for Lieutenant
Commander

LCL
LCL is an abbreviation for Less than Carload Lot; Lunar Cargo
Lander

LCM
LCM is an abbreviation for Least Common Multiple; Life Cycle Management

LCS
LCS is an abbreviation for Laboratory for
Computer Science

LCT
LCT is an abbreviation for Landing Craft Tanks

LD
LD is an abbreviation for Long Distance

LDC
LDC is an abbreviation for Long Distance
Carrier

LDEF
LDEF is an abbreviation for Long Duration Exposure Facility

LDF
LDF is an abbreviation for Large Deployable Reflector

LDL
LDL is an abbreviation for Low
Density Lipoprotein

LDX
LDX is an abbreviation for Long Distance eXtender

LEAP
LEAP is an abbreviation for Low-power Enhanced At Portable

LEC
LEC is an abbreviation for Local Exchange
Carrier

LED
LED is an abbreviation for
Light Emitting Diode

LEM
LEM is an abbreviation for Lunar Excursion Module

LEO
LEO is an abbreviation for Low
Earth Orbit

LEP
LEP is an abbreviation for Large Electron-Positron collider

LeRC
LeRC is an abbreviation for
Lewis Research Center

LEST
LEST is an abbreviation for Large Earth-based Solar
Telescope

LF
LF is an abbreviation for Low Frequency (30-300KHz)

LFSA
LFSA is an abbreviation for List of Frequently Seen Acronyms (!)

LGA
LGA is an abbreviation for Low Gain
Antenna

LGM
LGM is an abbreviation for Little
Green Men

LH
LH is an abbreviation for Left
Hand; Liquid Hydrogen (also LH2 or LHX); Lower Half; Luteinizing Hormone (same as ISCH)

LHC
LHC is an abbreviation for Large Hadron Collider

LHD
LHD is an abbreviation for Litterarum Humaniorum Doctor (doctor of
human letters)

LHS
LHS is an abbreviation for Left
Hand Side

LI
LI is an abbreviation for Long Island

LIFIA
LIFIA is an abbreviation for Laboratoire d'Informatique Fondamentale
et d'Intelligence Artificielle

LIFO
LIFO is an abbreviation for Last In First Out (see
FIFO)

LINC
LINC is an abbreviation for Laboratory INstrument
Computer

LISA
LISA is an abbreviation for Large Installation Systems Administration (USENIX specific?)

LISP
LISP is an abbreviation for LISt Processing Language

LIU
LIU is an abbreviation for Line
Interface Unit

LL
LL is an abbreviation for
Late Latin; Long Lines

LLB
LLB is an abbreviation for Legum Baccalaureus (
bachelor of laws)

LLD
LLD is an abbreviation for Legum doctor (doctor of laws)

LLN
LLN is an abbreviation for Line
Link Network

LLNL
LLNL is an abbreviation for
Lawrence Livermore National Laboratories

LLO
LLO is an abbreviation for Low Lunar
Orbit

LLOX
LLOX is an abbreviation for Lunar Liquid
Oxygen

LLP
LLP is an abbreviation for Line
Link Pulsing

LM
LM is an abbreviation for Life Master (
Contract Bridge ranking); Lunar Module

LMC
LMC is an abbreviation for Large Magellanic
Cloud (see SMC); Large Magellanic Cloud

LMOS
LMOS is an abbreviation for Line Maintenance Operations System

LN2
LN2 is an abbreviation for Liquid N2 (
Nitrogen)

LNG
LNG is an abbreviation for Liquified Natural Gas

LOA
LOA is an abbreviation for Lands of Adventure

LOFT
LOFT is an abbreviation for Launch Operations Flight Test

LOOPS
LOOPS is an abbreviation for
Lisp Object Oriented Programming System

LOP
LOP is an abbreviation for Lines Of Position

LOSF
LOSF is an abbreviation for Lunar
Orbit Staging Facility

LOTS
LOTS is an abbreviation for Low Overhead Timesharing System

LOX
LOX is an abbreviation for Liquid
OXygen; Liquid Oxygen

LP
LP is an abbreviation for Long Play(ing) (record); Low Pressure

LPC
LPC is an abbreviation for Linear Predictive Coding (speech processing)

LPDA
LPDA is an abbreviation for
Link Problem Determination Aid

LPF
LPF is an abbreviation for
League for Programming Freedom

LPG
LPG is an abbreviation for Liquefied
Petroleum Gas; Low Pressure Gas

LPL
LPL is an abbreviation for Lunar Personnel
Lander

LPN
LPN is an abbreviation for Licensed Practical Nurse

LPP
LPP is an abbreviation for Licensed Program Products

LPR
LPR is an abbreviation for Line PrinteR

LPT
LPT is an abbreviation for Lunar Propellant Tanker

LPV
LPV is an abbreviation for Lunar Piloted Vehicle

LRB
LRB is an abbreviation for Liquid
Rocket Booster

LRBM
LRBM is an abbreviation for Long
Range Ballistic Missile

LRC
LRC is an abbreviation for Longitudinal Redundancy Character

LRU
LRU is an abbreviation for Least Recently Used; Line Replaceable Unit

LRV
LRV is an abbreviation for
Light Rail Vehicle

LS
LS is an abbreviation for Left Side; Letter Signed; Locus Sigilli (place of
seal)

LSAP
LSAP is an abbreviation for Logical Service Access
Point

LSB
LSB is an abbreviation for Least Significant
Bit; Least Significant Byte; Lower Side Band

LSC
LSC is an abbreviation for Lecture Series Committee; LightSpeed C

LSD
LSD is an abbreviation for Least Significant Digit; LySergic
acid Diethylamide; pounds (Libra), shillings (Sestertii), and (old) pence (Denarii)

LSI
LSI is an abbreviation for Large Scale Integration

LSP
LSP is an abbreviation for LightSpeed Pascal

LSR
LSR is an abbreviation for Local
Standard of Rest

LSS
LSS is an abbreviation for Life Support System; Loop Switching System

LSSD
LSSD is an abbreviation for Level-Sensitive
Scan Detection

LT
LT is an abbreviation for Long
Ton; Low Tension

LTC
LTC is an abbreviation for Lieutenant
Colonel

LTJG
LTJG is an abbreviation for Lieutenant
Junior Grade

LTL
LTL is an abbreviation for Less than Truckload Lot

LTP
LTP is an abbreviation for Lunar Transient Phenomenon

LUG
LUG is an abbreviation for Local Users Group

LUT
LUT is an abbreviation for Look-Up Table

LWM
LWM is an abbreviation for Low-Water Mark

LWT
LWT is an abbreviation for
London Weekend Television

LZ
LZ is an abbreviation for Landing Zone

M
M is an abbreviation for Mega- (metric 10^6); Miniatures

m
m is an abbreviation for meter(s); milli- (metric 1/1000)

MA
MA is an abbreviation for
Massachusetts

MAAP
MAAP is an abbreviation for Maintenance And Administration Panel

MAC
MAC is an abbreviation for
Media Access Control; Medium Access Control; Military Air Command; an MIT interdepartmental lab (stands for many things) (renamed to LCS)

MACSYMA
MACSYMA is an abbreviation for project
MAC's SYmbolic MAnipulation System

MAD
MAD is an abbreviation for
Mutual Assured Destruction

MADD
MADD is an abbreviation for Mothers Against Drunk Driving

MAG
MAG is an abbreviation for
Magazine

MAN
MAN is an abbreviation for Metropolitan Area Network

MAP
MAP is an abbreviation for Manufacturing Automation Protocol

MAP/TOP
MAP/TOP is an abbreviation for Manufacturing Automation Protocol/Technical Office Protocol

MARBI
MARBI is an abbreviation for MAchine Readable form of Bibliographic Information

MARC
MARC is an abbreviation for MAchine Readable card Catalog

MARS
MARS is an abbreviation for Multiuser Archival and Retrieval System

MASC
MASC is an abbreviation for Multiple Award Schedule
Contract

MASER
MASER is an abbreviation for Microwave Amplification by Stimulated Emission of
Radiation

MASH
MASH is an abbreviation for
Mobile Army Surgical Hospital

MAST
MAST is an abbreviation for Multi-Application
SOnar Trainer

MAT-CALS
MAT-CALS is an abbreviation for
Marine Air Traffic-Control And Landing System

MAU
MAU is an abbreviation for Math
Acceleration Unit; Media Access Unit; Medium Access Unit

MB
MB is an abbreviation for Manned Base; MegaByte

MBA
MBA is an abbreviation for Master Business Administration

MBTA
MBTA is an abbreviation for
Massachusetts Bay Transportation Authority

MC
MC is an abbreviation for Master of Ceremonies

MCA
MCA is an abbreviation for
Micro Channel Architecture

MCAE
MCAE is an abbreviation for Mechanical
Computer Aided Engineering

MCC
MCC is an abbreviation for Master Control
Console; Microelectronics and Computer technology Corporation; Mission Control Center

MCP
MCP is an abbreviation for Master Control Program and also Male Chauvinist
Pig

MCP/AS
MCP/AS is an abbreviation for Master Control Program/Advanced System

MCPO
MCPO is an abbreviation for Master Chief Petty Officer

MCSV
MCSV is an abbreviation for
Mars Crew Sortie Vehicle

MD
MD is an abbreviation for Doctor of
Medicine; Maryland; Maryland; Medical Doctor; Months after Date

MDAS
MDAS is an abbreviation for Magnetic Drum Auxiliary Sender

MDC
MDC is an abbreviation for Metropolitan
District Commision (Mass State Agency)

MDE
MDE is an abbreviation for Modular Design Environment

MDF
MDF is an abbreviation for Main Distribution Frame

MDRE
MDRE is an abbreviation for
Mass Driver Reaction Engine

MDT
MDT is an abbreviation for Mean Down
Time

ME
ME is an abbreviation for
Maine; Mechanical Engineer

MECO
MECO is an abbreviation for Main Engine CutOff

MEd
MEd is an abbreviation for Master of EDucation

MERP
MERP is an abbreviation for Middle-Earth Role Playing

MeV
MeV is an abbreviation for Million Electron Volts

MF
MF is an abbreviation for Medium Frequency (300-3000KHz);
Middle French; Multi-Frequency

MFA
MFA is an abbreviation for Master Fine Arts; Museum of Fine Arts

MFJ
MFJ is an abbreviation for Modified Final Judgment

MFLOPS
MFLOPS is an abbreviation for Million FLoating-point OPerations per Second (see also
FLOPS)

MFM
MFM is an abbreviation for Modified Frequency
Modulation

MFS
MFS is an abbreviation for Macintosh File System

MG
MG is an abbreviation for Machine Gun; Major General; Military Government

MGH
MGH is an abbreviation for
Massachusetts General Hospital

MGM
MGM is an abbreviation for Metro-Goldwyn
Mayer

MHD
MHD is an abbreviation for MagnetoHydroDynamics

MHS
MHS is an abbreviation for Mail Handling System

MHz
MHz is an abbreviation for Mega HertZ (unit of frequency, 1,000,000 cycles per second)

MI
MI is an abbreviation for
Michigan; Military Intelligence

MIA
MIA is an abbreviation for Missing In
Action

MIB
MIB is an abbreviation for Management Information Base

MIDI
MIDI is an abbreviation for Musical Instrument Digital
Interface

MIFASS
MIFASS is an abbreviation for
Marine Integrated Fire And Support System

MILNET
MILNET is an abbreviation for MILitary NETwork

MIM
MIM is an abbreviation for Morality In
Media

MIMD
MIMD is an abbreviation for Multiple Instruction, Multiple
Data

MINCE
MINCE is an abbreviation for MINCE Is Not Complete
Emacs

MIPS
MIPS is an abbreviation for Million Instructions Per Second

Mir
Mir is an abbreviation for
Peace

MIRV
MIRV is an abbreviation for Multiple Independently-Targetable Reentry Vehicle

MIS
MIS is an abbreviation for Management Information System

MIT
MIT is an abbreviation for
Massachusetts Institute of Technology

ML
ML is an abbreviation for
Middle Latin

mL
mL is an abbreviation for milliliter(s)

MLA
MLA is an abbreviation for Member of Legislative Assembly (see
MPP)

MLD
MLD is an abbreviation for Minimum Lethal Dose

MLL
MLL is an abbreviation for
Mars Logistics Lander

MLS
MLS is an abbreviation for Microwave Landing System; Multi-Level Security

MLV
MLV is an abbreviation for Medium Lift Vehicle

MM
MM is an abbreviation for Maryknoll Missioners

mm
mm is an abbreviation for millimeters

MMES
MMES is an abbreviation for
Martin Marietta Energy Systems

MMFS
MMFS is an abbreviation for Manufacturing Message Format
Standard

MMH
MMH is an abbreviation for MonoMethyl Hydrazine

MMM
MMM is an abbreviation for see
3M

MMT
MMT is an abbreviation for Multiple Mirror
Telescope

MMU
MMU is an abbreviation for Manned Maneuvering Unit; Memory Management Unit

MMW
MMW is an abbreviation for Multi-Mega Watt

MN
MN is an abbreviation for
Minnesota

MNA
MNA is an abbreviation for Member of National Assembly (
Quebec)

MNP
MNP is an abbreviation for Microcom Networking Protocol

MNRAS
MNRAS is an abbreviation for Monthly Notices of the
Royal Astronomical Society

MO
MO is an abbreviation for Mail Order; Medical Officer;
Missouri; Modus Operandi; Money Order

MOC
MOC is an abbreviation for
Mars Observer Camera (on Mars Observer)

MOD
MOD is an abbreviation for Ministry of Defence (
UK) (sometimes written MoD)

MOL
MOL is an abbreviation for Manned Orbiting Laboratory

MOLA
MOLA is an abbreviation for
Mars Observer Laser Altimeter (on Mars Observer)

MOMA
MOMA is an abbreviation for Museum of Modern Art

MOMV
MOMV is an abbreviation for Manned
Orbital Maneuvering Vehicle

MOR
MOR is an abbreviation for Middle-Of-the-Road

MOS
MOS is an abbreviation for
Metal Oxide Semiconductor

MOSFET
MOSFET is an abbreviation for
Metal Oxide Semiconductor Field Effect Transistor

MOTAS
MOTAS is an abbreviation for Member Of The Appropriate Sex

MOTIS
MOTIS is an abbreviation for Member Of The Inappropriate Sex; Message-Oriented Text Interchange System

MOTOS
MOTOS is an abbreviation for Member of the Opposite Sex

MOTSS
MOTSS is an abbreviation for Member of the Same Sex

MOTV
MOTV is an abbreviation for Manned
Orbital Transfer Vehicle

MOU
MOU is an abbreviation for Memorandum Of Understanding

MOUSE
MOUSE is an abbreviation for Minimum
Orbital Unmanned Satellite of Earth

MP
MP is an abbreviation for Melting
Point; Member of Parliament; Metropolitan Police and also Military Police

MPC
MPC is an abbreviation for
Minor Planets Circular

MPE
MPE is an abbreviation for
Mission to Planet Earth

MPG
MPG is an abbreviation for
Miles Per Gallon

MPH
MPH is an abbreviation for
Miles Per Hour

MPP
MPP is an abbreviation for Member of Provincial Parliament (
Canada; also MLA)

MPR
MPR is an abbreviation for
Mars Pressurized Rover

MPV
MPV is an abbreviation for
Mars Piloted Vehicle

MPW
MPW is an abbreviation for Macintosh Programmer's Workshop

MR
MR is an abbreviation for Miniatures Rules

MRI
MRI is an abbreviation for Magnetic Resonance Imaging

MRP
MRP is an abbreviation for Manufacturing Requirements Planning

MRSR
MRSR is an abbreviation for
Mars Rover and Sample Return

MRSRM
MRSRM is an abbreviation for
Mars Rover and Sample Return Mission

MS
MS is an abbreviation for ManuScript; Master of Science; Military Science; Motor
Ship; Multiple Sclerosis

MS-DOS
MS-DOS is an abbreviation for MicroSoft
DOS

MSB
MSB is an abbreviation for Most Significant
Bit; Most Significant Byte

MSC
MSC is an abbreviation for MicroSoft C

MSCP
MSCP is an abbreviation for
Mass Storage Control Protocol

MSD
MSD is an abbreviation for Most Significant Digit

MSE
MSE is an abbreviation for
Mobile Subscriber Equipment

MSFC
MSFC is an abbreviation for (
George C.) Marshall Space Flight Center (NASA); Marshall Space Flight Center

MSG
MSG is an abbreviation for MonoSodium Glutamate

MSH
MSH is an abbreviation for Marvel Super Heroes

MSL
MSL is an abbreviation for Mean Sea Level

MSPCA
MSPCA is an abbreviation for Massachussetts Society for the Prevention of Cruelty to
Animals

MSPE
MSPE is an abbreviation for Mercenaries, Spies & Private Eyes

MSRP
MSRP is an abbreviation for Manufacturer's Suggested Retail
Price

MSS
MSS is an abbreviation for Management Support System; ManuScriptS;
Mass Storage System; Maximum Segment Size (see also MTU)

MST
MST is an abbreviation for
Mountain Standard Time

MT
MT is an abbreviation for Metric
Ton; Mountain Time

MTA
MTA is an abbreviation for Message Transfer Agent; Metropolitan
Transportation Authority

MTBF
MTBF is an abbreviation for Mean
Time Between Failures

MTC
MTC is an abbreviation for
Man Tended Capability

MTR
MTR is an abbreviation for Magnetic Tape Recording

MTSO
MTSO is an abbreviation for
Mobile Telephone Switching Office

MTTF
MTTF is an abbreviation for Mean
Time To Failure

MTTR
MTTR is an abbreviation for Mean
Time To Recovery; Mean Time To Repair

MTU
MTU is an abbreviation for Maximum Transfer Unit (see also
MSS)

MTV
MTV is an abbreviation for Music
TeleVision

MUF
MUF is an abbreviation for Maximum Usable Frequency (
max freq during sunspot activity)

MULTICS
MULTICS is an abbreviation for MULTiplex Information
Computer Services

MUMPS
MUMPS is an abbreviation for
Mgh Utility MultiProgram System

MUNG
MUNG is an abbreviation for Mung Until No Good (see the hacker's dictionary)

MUX
MUX is an abbreviation for MUltipleXor

MVA
MVA is an abbreviation for MegaVolt
Ampere

MVS
MVS is an abbreviation for Multiple Virtual Storage

MX
MX is an abbreviation for Missile eXperimental

N
N is an abbreviation for North; Notice

NA
NA is an abbreviation for Narcotics Anonymous; North America; Not Applicable

NAACP
NAACP is an abbreviation for National Association for the Advancement of Colored People

NAAS
NAAS is an abbreviation for North American Automated Systems
co.

NAB
NAB is an abbreviation for National Association of Broadcasters

NABISCO
NABISCO is an abbreviation for NAtional BIScuit COmpany

NACCIRN
NACCIRN is an abbreviation for North American Coordinating Committee for Intercontinental Research Networking (see also
CCIRN)

NACS
NACS is an abbreviation for National Advisory Committee on Semiconductors

NAD
NAD is an abbreviation for Network Access Device

NADGE
NADGE is an abbreviation for
NATO Air Defense Ground Environment

NAG
NAG is an abbreviation for Numerical Algorithms Group

NAGE
NAGE is an abbreviation for National Association of Government Employees

NAK
NAK is an abbreviation for Negative AcKnowledge

NAM
NAM is an abbreviation for Name and Address Module (cellular phone changeable
ROM); National Account Manager; Number Assignment Module (cellular phone changeable ROM)

NANP
NANP is an abbreviation for North American Numbering Plan

NAPAP
NAPAP is an abbreviation for National
Acid Precipitation Assessment Program

NAR
NAR is an abbreviation for Nuclear
Acoustic Resonance

NARDAC
NARDAC is an abbreviation for NAvy Regional
Data Automation Center

NAS
NAS is an abbreviation for National Academy of Sciences; National Advanced Systems

NASA
NASA is an abbreviation for National (US) Aeronautics and Space Administration

NASDA
NASDA is an abbreviation for NAtional (
Japan) Space Development Agency

NASM
NASM is an abbreviation for National (US)
Air and Space Museum

NASP
NASP is an abbreviation for National (US) AeroSpace Plane

NATO
NATO is an abbreviation for North Atlantic Treaty Organization

NAVDAC
NAVDAC is an abbreviation for NAVal
Data Automation Command

NAVSWC
NAVSWC is an abbreviation for NAVal Surface Weapons Center

NB
NB is an abbreviation for
New Brunswick; Nota Bene

NBA
NBA is an abbreviation for National (US) Basketball Association

NBC
NBC is an abbreviation for National (US) Broadcasting Company

NBFM
NBFM is an abbreviation for NarrowBand Frequency
Modulation

NBO
NBO is an abbreviation for Network Build Out

NBS
NBS is an abbreviation for National
Bureau of Standards (renamed NIST)

NBVM
NBVM is an abbreviation for Narrow Band Voice
Modulation

NC
NC is an abbreviation for No Charge; No Connection;
North Carolina

NCA
NCA is an abbreviation for Network Control Analysis

NCC
NCC is an abbreviation for National (US)
Computer Conference; National (US) Council of Churches

NCDC
NCDC is an abbreviation for National (US) Climatic
Data Center

NCE
NCE is an abbreviation for New Catholic Edition

NCGA
NCGA is an abbreviation for National (US)
Computer Graphics Association

NCI
NCI is an abbreviation for National (US)
Cancer Institute

NCIC
NCIC is an abbreviation for National (US) Cartographic Information Center

NCO
NCO is an abbreviation for Non-Commissioned Officer

NCP
NCP is an abbreviation for Network Control Program

NCR
NCR is an abbreviation for National (US?)
Cash Register

NCS
NCS is an abbreviation for Network Computing System

NCSA
NCSA is an abbreviation for National (US) Center for Supercomputing Applications

NCSC
NCSC is an abbreviation for National (US)
Computer Security Center

NCTL
NCTL is an abbreviation for National
Computer and Telecommunications Laboratory

NCV
NCV is an abbreviation for No
Commercial Value

ND
ND is an abbreviation for No
Date; North Dakota

NDA
NDA is an abbreviation for Non-Disclosure Agreement

NDDL
NDDL is an abbreviation for Neutral
Data Definition Language

NDE
NDE is an abbreviation for
News Development Environment

NDEA
NDEA is an abbreviation for National (US) Defense Education Act

NDL
NDL is an abbreviation for Network Database Language

NDP
NDP is an abbreviation for New Democratic Party (
Canada)

NDSL
NDSL is an abbreviation for National (US) Defense Student Loan; National (US) Direct Student Loan

NDT
NDT is an abbreviation for
Newfoundland Daylight Time

NDV
NDV is an abbreviation for
NASP Derived Vehicle; NASP Derived Vehicle

NE
NE is an abbreviation for
New England; North East

NEAR
NEAR is an abbreviation for National Electronic Accounting and Reporting system

NEARnet
NEARnet is an abbreviation for
New England Academic and Research Network

NEB
NEB is an abbreviation for New English Bible

NEC
NEC is an abbreviation for Nippon Electric Company

NEI
NEI is an abbreviation for Not Elsewhere Included

NES
NES is an abbreviation for National
Energy Strategy; Not Elsewhere Specified

NESC
NESC is an abbreviation for National
Energy Software Center

NET
NET is an abbreviation for NETwork; National (US) Educational
Television; New England Telephone

NEWS
NEWS is an abbreviation for Network extensible Window System

NEXRAD
NEXRAD is an abbreviation for NEXt generation weather
RADar

NF
NF is an abbreviation for No Funds

NFC
NFC is an abbreviation for National (US)
Football Conference

NFFE
NFFE is an abbreviation for National (US)
Federation of Federal Employees

NFL
NFL is an abbreviation for National (US)
Football League

NFS
NFS is an abbreviation for Network File System

NG
NG is an abbreviation for National Guard; No Good

NGC
NGC is an abbreviation for New General Catalog

NH
NH is an abbreviation for
New Hampshire

NHI
NHI is an abbreviation for National Health Insurance

NHL
NHL is an abbreviation for National (
Canada) Hockey League

NHLBI
NHLBI is an abbreviation for National
Heart, Lung, and Blood Institute (Bethesda, MD)

NIC
NIC is an abbreviation for Network Information Center ("The NIC" is NIC.
DDN.MIL)

NICMOS
NICMOS is an abbreviation for Near Infrared Camera / Multi Object Spectrometer (
HST upgrade)

NIFTP
NIFTP is an abbreviation for (a file transfer network in the
UK)

NIH
NIH is an abbreviation for National (US) Institutes of Health; Not Invented Here

NIM
NIM is an abbreviation for Nuclear Instrumentation Module (an electronic instr. standard)

NIMH
NIMH is an abbreviation for National
Institute of Mental Health (Rockville, MD)

NIMS
NIMS is an abbreviation for Near-Infrared Mapping Spectrometer (on
Galileo)

NIR
NIR is an abbreviation for Near InfraRed

NIS
NIS is an abbreviation for Network Information System (formerly
yp)

NISO
NISO is an abbreviation for National Information Standards Organization

NIST
NIST is an abbreviation for National
Institute of Standards and Technology (formerly NBS)

NJ
NJ is an abbreviation for
New Jersey

NJB
NJB is an abbreviation for
New Jersey Bell

NL
NL is an abbreviation for National
League (baseball)

NLM
NLM is an abbreviation for National Library of
Medicine

NLP
NLP is an abbreviation for Natural Language Processing

NLRB
NLRB is an abbreviation for National Labor Relations Board

NLS
NLS is an abbreviation for Network License Server

NM
NM is an abbreviation for Nautical
Mile; New Mexico; Night Message; No Mark; Not Marked

NMOS
NMOS is an abbreviation for N channel
Metal Oxide Semiconductor (N-MOS) (see MOS)

NMR
NMR is an abbreviation for Nuclear Magnetic Resonance

NMS
NMS is an abbreviation for Network Monitoring Station

NNE
NNE is an abbreviation for North North East

NNTP
NNTP is an abbreviation for
Net News Transfer Protocol

NNW
NNW is an abbreviation for North North West

NNX
NNX is an abbreviation for
NANP syntax for a three-digit string

NOA
NOA is an abbreviation for
NSWC Office Automation

NOAA
NOAA is an abbreviation for National Oceanic and Atmospheric Administration

NOAO
NOAO is an abbreviation for National (
Tucson, AZ, US) Optical Astronomical Observatories

NOC
NOC is an abbreviation for Network Operations Center

NORAD
NORAD is an abbreviation for NORth
American Defense Command

NORM
NORM is an abbreviation for Naturally Occuring
Radioactive Material

NORML
NORML is an abbreviation for National Organization for the
Reform of Marijuana Laws

NOS
NOS is an abbreviation for Not Otherwise Specified

NOSC
NOSC is an abbreviation for Naval
Ocean Systems Center

NOTIS
NOTIS is an abbreviation for Network Operator Trouble Information System

NOW
NOW is an abbreviation for Negotiable Order for Withdrawal

NOx
NOx is an abbreviation for
Nitrogen Oxides

NP
NP is an abbreviation for No Protest; Nondeterministic-Polynomial; Notary Public; Noun Phrase

NPA
NPA is an abbreviation for Numbering Plan Area (area code)

NPC
NPC is an abbreviation for Non-Player Character (see
PC)

NPL
NPL is an abbreviation for National Physical Laboratory (
UK); Non-Procedural Language

NPN
NPN is an abbreviation for Negative-Positive-Negative (
transistor); NonProtein Nitrogen

NPR
NPR is an abbreviation for National Public Radio; non-Processor Request

NQS
NQS is an abbreviation for Network Queuing System

NRA
NRA is an abbreviation for National Reconstruction Act (
FDR era US); National Rifle Association

NRAO
NRAO is an abbreviation for National Radio Astronomical Observatory

NRC
NRC is an abbreviation for National Research
Council; Nuclear Regulatory Commission

NRE
NRE is an abbreviation for Non-Recurring Engineering (as in NRE costs)

NREN
NREN is an abbreviation for National (US) Research and Education Network

NRL
NRL is an abbreviation for Naval Research Labs

NRO
NRO is an abbreviation for National Reconnaissance Office; National Reconnaissance Organization

NRZ
NRZ is an abbreviation for Non-Return to
Zero

NRZI
NRZI is an abbreviation for Non-Return to
Zero Inverted (magnetic tape, 800 bpi)

NS
NS is an abbreviation for
Neutron Star; Not Specified; Nova Scotia; Nuclear Ship

NSA
NSA is an abbreviation for National Security Agency

NSAP
NSAP is an abbreviation for Network Service Access
Point

NSC
NSC is an abbreviation for National (US) Security
Council

NSE
NSE is an abbreviation for Network Software Environment

NSF
NSF is an abbreviation for National (US) Science Foundation

NSS
NSS is an abbreviation for Nodal Switching System

NSSDC
NSSDC is an abbreviation for National Space Science
Data Center

NST
NST is an abbreviation for
Newfoundland Standard Time

NSTS
NSTS is an abbreviation for National Space
Transportation System

NSW
NSW is an abbreviation for
New South Wales (Australia)

NSWC
NSWC is an abbreviation for Naval Surface Warfare Center; Naval Surface Weapons Center

NT
NT is an abbreviation for New Testament;
Newfoundland Time; Northern Territory

NTEU
NTEU is an abbreviation for National Treasury Employees
Union

NTIS
NTIS is an abbreviation for National Technical Information Service

NTN
NTN is an abbreviation for Neutralized Twisted Nematic

NTP
NTP is an abbreviation for Network
Time Protocol; Normal Temperature and Pressure (see STP)

NTSB
NTSB is an abbreviation for National
Transportation Safety Board

NTSC
NTSC is an abbreviation for National
Television Standards Committee; Never Twice Same Color

NTT
NTT is an abbreviation for New Technology
Telescope; Nippon Telephone & Telegraph

NU
NU is an abbreviation for Name Unknown

NURBS
NURBS is an abbreviation for NonUniform Rational B-Spline

NUSC
NUSC is an abbreviation for Naval Underwater Systems Center

NV
NV is an abbreviation for
Nevada

NW
NW is an abbreviation for North West

NWNET
NWNET is an abbreviation for NorthWestNet

NWS
NWS is an abbreviation for National Weather Service

NWT
NWT is an abbreviation for North West Territories (
Australia)

NXX
NXX is an abbreviation for
NANP syntax for a three-digit string

NY
NY is an abbreviation for
New York

NYC
NYC is an abbreviation for
New York City

NYNEX
NYNEX is an abbreviation for
New York and New England (Telephone)

NYPD
NYPD is an abbreviation for
New York Police Department

NYSE
NYSE is an abbreviation for
New York Stock Exchange

NYSERNet
NYSERNet is an abbreviation for
New York State Educational and Research Network

NZ
NZ is an abbreviation for
New Zealand

NZUSUGI
NZUSUGI is an abbreviation for
New Zealand Unix System User Group, Inc.

OA
OA is an abbreviation for Office Automation; Overeaters Anonymous

OAO
OAO is an abbreviation for Orbiting Astronomical Observatory

OAS
OAS is an abbreviation for Organization of
American States

OATS
OATS is an abbreviation for Office Automation Technology and Services

OBE
OBE is an abbreviation for Order of the British
Empire

OBS
OBS is an abbreviation for Omni Bearing Selector

OC
OC is an abbreviation for Order of
Canada

OCDM
OCDM is an abbreviation for Office of Civil Defense and Mobilization

OCI
OCI is an abbreviation for Out of
City Indicator

OCLC
OCLC is an abbreviation for Online
Computer Library Center (Ohio College Library Catalog); Online Computer Library Center, Inc.

OCO
OCO is an abbreviation for Object Code Only

OCR
OCR is an abbreviation for Optical Character Recognition

OCS
OCS is an abbreviation for Officer Candidate School

OCST
OCST is an abbreviation for Office of
Commercial Space Transportation

OD
OD is an abbreviation for Doctor of Optometry; Oculus
Dexter (right eye); Officer of the Day; OverDose

ODI
ODI is an abbreviation for Optical Digital Image

ODISS
ODISS is an abbreviation for Optical Digital Image Storage System

ODT
ODT is an abbreviation for Octal Debugging Technique; Online Debugging Technique

OE
OE is an abbreviation for Old
English

OED
OED is an abbreviation for
Oxford English Dictionary

OEM
OEM is an abbreviation for Original Equipment Manufacturer

OEO
OEO is an abbreviation for Office of Economic
Opportunity

OES
OES is an abbreviation for Order of the
Eastern Star

OEXP
OEXP is an abbreviation for Office of Exploration

OF
OF is an abbreviation for Old
French

OFM
OFM is an abbreviation for Order of Friars
Minor

OFS
OFS is an abbreviation for Order of Free
State

OG
OG is an abbreviation for Original Gum

OH
OH is an abbreviation for
Ohio

OIRA
OIRA is an abbreviation for Office of Information and Regulatory Affairs

OIU
OIU is an abbreviation for Office
Interface Unit

OJT
OJT is an abbreviation for On the Job Training

OLTP
OLTP is an abbreviation for On-Line Transaction Processing

OMB
OMB is an abbreviation for Office of Management and Budget

OMD
OMD is an abbreviation for Orchestral Manouevers in the Dark

OMS
OMS is an abbreviation for
Orbital Maneuvering System

OMV
OMV is an abbreviation for
Orbital Maneuvering Vehicle

ON
ON is an abbreviation for Old
Norse

ONC
ONC is an abbreviation for Open Network Computing

ONI
ONI is an abbreviation for Office of Naval Intelligence; Operator Number Identification

ONR
ONR is an abbreviation for Office of Naval Research

OOP
OOP is an abbreviation for Object Oriented Programming

OOPART
OOPART is an abbreviation for Out Of Place ARTifact

OOPS
OOPS is an abbreviation for Object-Oriented Programming System

OP
OP is an abbreviation for OFFICEPOWER office automation system, trademark of
CCI; Observation Post; Order of Preachers; Out of Print

OPEC
OPEC is an abbreviation for Organization of
Petroleum Exporting Countries

OPF
OPF is an abbreviation for Orbiter Processing Facility

OPM
OPM is an abbreviation for Office of Personnel Management

OPUS
OPUS is an abbreviation for Obvious Password Utility System

OR
OR is an abbreviation for Operating Room;
Oregon; Owner's Risk, Own Risk

ORFEUS
ORFEUS is an abbreviation for Orbiting and Retrievable Far and Extreme Ultraviolet Spectrometer

ORNL
ORNL is an abbreviation for
Oak Ridge National Laboratory

OROM
OROM is an abbreviation for Optical
Read Only Memory

OS
OS is an abbreviation for Oculus Sinister (left
eye); Operating System; Ordinary Seaman; Out of Stock

OSB
OSB is an abbreviation for Order of
St. Benedict

OSC
OSC is an abbreviation for
Orbital Sciences Corporation

OSCAR
OSCAR is an abbreviation for Orbiting Satelite Carry Amateur Radio (1st launched 12
Dec 1961); Orbiting Satellite Carry Amateur Radio (1st launched 12 Dec 1961); Orbiting Satellite Carrying Amateur Radio

OSCRL
OSCRL is an abbreviation for Operating System Command Response Language

OSD
OSD is an abbreviation for Office of the Secretary of Defense

OSDIT
OSDIT is an abbreviation for Office of Software Development and Information Technology

OSF
OSF is an abbreviation for Open Software Foundation; Open Systems Foundation; Order of
St. Francis

OSHA
OSHA is an abbreviation for Occupational Safety and Health Administration

OSI
OSI is an abbreviation for Office of Scientific Integrity; Open Systems Interconnection (per
ISO; 7 layer model)

OSI/RM
OSI/RM is an abbreviation for Open Systems Interconnection/Reference
Model

OSME
OSME is an abbreviation for Open Systems Message Exchange

OSP
OSP is an abbreviation for Optical Storage Processor

OSPFIGP
OSPFIGP is an abbreviation for Open Shortest-Path First Internal
Gateway Protocol

OSS
OSS is an abbreviation for Office Support System; Office of Strategic Services (later
CIA); Operation Support System

OSSA
OSSA is an abbreviation for Office of Space Science and Applications

OSSE
OSSE is an abbreviation for Oriented
Scintillation Spectrometer Experiment (on GRO)

OSTP
OSTP is an abbreviation for (
White House) Office of Science and Technology Policy; Office of Science and Technology Policy

OT
OT is an abbreviation for Old Testament; OverTime

OT&LF
OT&LF is an abbreviation for Open
Taxi & Limousine Foundation

OTA
OTA is an abbreviation for Office of Technical Assistance; Office of Technology Assessment; Optical
Telescope Assembly

OTB
OTB is an abbreviation for Off-Track Betting

OTC
OTC is an abbreviation for Over The Counter (
stocks)

OTF
OTF is an abbreviation for Open Token Foundation

OTH-B
OTH-B is an abbreviation for Over The Horizon - Backscatter (as in
radar)

OTR
OTR is an abbreviation for On The Rag

OTS
OTS is an abbreviation for Officers' Training School

OTV
OTV is an abbreviation for
Orbital Transfer Vehicle

OUTWATS
OUTWATS is an abbreviation for OUTward Wide Area
Telephone Service

OV
OV is an abbreviation for
Orbital Vehicle; Orbiter Vehicle

PA
PA is an abbreviation for
Pennsylvania; Per Annum; Play Aid; Power of Attorney; Press Agent; Private Account; Public Address; Purchasing Agent

PABX
PABX is an abbreviation for Private Automatic
Branch eXchange

PACCOM
PACCOM is an abbreviation for
Pacific Computer Communications network consortium

PACX
PACX is an abbreviation for Private Automatic
Computer eXchange

PAD
PAD is an abbreviation for
Packet Assembler-Disassembler

PAH
PAH is an abbreviation for Polycyclic Aromatic
Hydrocarbon

PAL
PAL is an abbreviation for Phase Alternation Line-rate; Programmable Array Logic

PAM
PAM is an abbreviation for Payload Assist Module; Pulse Amplification
Modulation

PARC
PARC is an abbreviation for
Palo Alto Research Center, xerox

PASS
PASS is an abbreviation for Personal Access Satellite System

PATROL
PATROL is an abbreviation for Program for Administrative Traffic Reports On Line

PBM
PBM is an abbreviation for Play By Mail game

PBS
PBS is an abbreviation for Public Broadcasting System

PBX
PBX is an abbreviation for Private
Branch eXchange

PC
PC is an abbreviation for
Peace Corps; PerCent; PerCentage; Personal Computer (IBM wants you to believe a specific kind); Player Character (see NPC); Post Card; Post Cibum (after meals); Privileged Character; Privy Council; Program Counter; Progressive Conservative party; Providence College

PC-DOS
PC-DOS is an abbreviation for Personal
Computer DOS

PC/AT
PC/AT is an abbreviation for Personal Computer/Advanced Technology

PCB
PCB is an abbreviation for PolyChlorinated Biphenyl; Printed
Circuit Board

PCI
PCI is an abbreviation for Panel Call Indicator

PCIE
PCIE is an abbreviation for
President's Council on Integrity and Efficiency

PCL
PCL is an abbreviation for Printer Command Language

PCM
PCM is an abbreviation for Plug-Compatible Mainframe; Pulse Code
Modulation

PCPC
PCPC is an abbreviation for Personal Computers Peripheral Corporation

PCS
PCS is an abbreviation for Permanent Change of Station

PCTE
PCTE is an abbreviation for Portable Common Tools Environment

PCTS
PCTS is an abbreviation for
Posix Conformance Test Suite

PD
PD is an abbreviation for Per Diem; Police Department; Potential Difference; Public
Domain

PDAD
PDAD is an abbreviation for Proposed Draft ADdendum

PDE
PDE is an abbreviation for Partial Differential Equation

PDES
PDES is an abbreviation for Product
Data Exchange Specifications

PDF
PDF is an abbreviation for Program Development Facility

PDL
PDL is an abbreviation for
Page Description Language; Program Design Language

PDN
PDN is an abbreviation for Public
Data Network

PDP
PDP is an abbreviation for
Plasma Display Panel; Programmed Data Processor; Programmed Data Processor

PDQ
PDQ is an abbreviation for Pretty Damned Quick

PDS
PDS is an abbreviation for Premises Distribution System

PDT
PDT is an abbreviation for
Pacific Daylight Time

PE
PE is an abbreviation for Phase Encoded; Physical Education; Prince
Edward island; Printer's Error; Professional Engineer; Protestant Episcopal

PEI
PEI is an abbreviation for Prince
Edward Island

PEP
PEP is an abbreviation for Productivity Enhancement Project

PEPE
PEPE is an abbreviation for Pepe
Est Presque Emacs

PERL
PERL is an abbreviation for Pathologically
Eclectic Rubbish Lister; Practical Extraction and Report Language

PEX
PEX is an abbreviation for Phigs/phigs+ Extension to X

PFC
PFC is an abbreviation for
Plasma Fusion Center

PG
PG is an abbreviation for Parental Guidance

PGA
PGA is an abbreviation for Professional Graphics Adapter; Pure
Grain Alcohol

PHA
PHA is an abbreviation for Pulse Height Analyzer (or Analysis)

PHIGS
PHIGS is an abbreviation for Programmers Hierarchical Interactive Graphics System

PHS
PHS is an abbreviation for Public Health Service

PhysRev Physical Review Journal
PhysRev Physical Review Journal is an abbreviation for - Phys Rev

PI
PI is an abbreviation for Principal Investigator; Priority Interrupt; Private Investigator

PIC
PIC is an abbreviation for Plastic/Polyethelene Insulated
Cable; Position Independant Code

PIF
PIF is an abbreviation for Paid In Full

PIT
PIT is an abbreviation for Principal, Interest, and Taxes

PIXEL
PIXEL is an abbreviation for PIcture
ELement

PLA
PLA is an abbreviation for Programmable Logic Array

PLATO
PLATO is an abbreviation for Programmed Learning for Automated Teaching Operations

PLC
PLC is an abbreviation for Programmable Logic Controller

PLCC
PLCC is an abbreviation for
Plastic Leaded Chip Carrier

PLL
PLL is an abbreviation for Phase-Locked Loop

PLM
PLM is an abbreviation for Programming Language for Microcomputers

PLO
PLO is an abbreviation for
Palestine (sic?) Liberation Organization (?); Please Leave On

PLSS
PLSS is an abbreviation for Portable Life Support System

PM
PM is an abbreviation for PayMaster; Police
Magistrate; Post Meridiem; Post Meridiem (after noon); PostMaster; PostMortem; Pressurized Module; Preventive Maintenance; Prime Minister; Provost Marshal

PM/X
PM/X is an abbreviation for Presentation Manager for X windows

PMC
PMC is an abbreviation for Permanently Manned Capability

PMIRR
PMIRR is an abbreviation for Pressure Modulated InfraRed Radiometer (on
Mars Observer)

PMO
PMO is an abbreviation for Prime Minister's Office

PMOS
PMOS is an abbreviation for P channel
Metal Oxide Semiconductor (P-MOS) (see MOS)

PMS
PMS is an abbreviation for PreMenstrual Syndrome

PMT
PMT is an abbreviation for PhotoMultiplier Tube

PN
PN is an abbreviation for Promissory Note

PNP
PNP is an abbreviation for Positive-Negative-Positive (
transistor)

PO
PO is an abbreviation for
Petty Officer; Post Office; Postal Order; Purchase Order

POC
POC is an abbreviation for Port Of Call

POD
POD is an abbreviation for Pay On Delivery

POE
POE is an abbreviation for Port Of Embarkation; Port Of Entry

POGO
POGO is an abbreviation for
Polar Orbiting Geophysical Observatory

POM
POM is an abbreviation for Phase Of
Moon

POP
POP is an abbreviation for
Point of Presence; Post Office Protocol (esp. TCP/IP)

POPS
POPS is an abbreviation for Paperless Order Processing System

POR
POR is an abbreviation for
Price On Request

POS
POS is an abbreviation for
Point Of Sale; Professional Operating System

POSI
POSI is an abbreviation for Promoting conference for
OSI

POSIX
POSIX is an abbreviation for Portable Operating System
Interface; Portable Operating System for unIX

POTS
POTS is an abbreviation for
Plain Old Telephone Service

POTV
POTV is an abbreviation for Personnel
Orbit Transfer Vehicle

POV
POV is an abbreviation for
Point Of View

POW
POW is an abbreviation for Prisoner Of
War

PP
PP is an abbreviation for Parcel
Post; Past Participle; Post Pay (payphone); Primary Point

PPB
PPB is an abbreviation for Parts Per Billion

PPC
PPC is an abbreviation for Pour Prendre Conge' (to take leave)

PPCS
PPCS is an abbreviation for Person to Person, Collect, Special

PPM
PPM is an abbreviation for Parts Per Million

PPN
PPN is an abbreviation for Parameterized Post-Newtonian formalism for general
relativity; Project Programmer Number

PPP
PPP is an abbreviation for Point-to-Point Protocol (successor to
SLIP )

PPS
PPS is an abbreviation for PostPostScriptum

pps
pps is an abbreviation for Packets per Second

PPT
PPT is an abbreviation for Parts Per Trillion; Pulse Pair Timing; Punched Paper Tape

PQ
PQ is an abbreviation for Province of
Quebec

PR
PR is an abbreviation for PayRoll; Public Relations; Puerto
Rico

PRC
PRC is an abbreviation for Planning Research Corporation

PREPnet
PREPnet is an abbreviation for
Pennsylvania Research & Economic Partnership Network

PRI
PRI is an abbreviation for Primary Rate
Interface (ISDN)

PRN
PRN is an abbreviation for pro re nata

PROFS
PROFS is an abbreviation for PRofessional OFfice System

PROM
PROM is an abbreviation for Programmable Read-Only Memory

PS
PS is an abbreviation for PicoSecond; PostScript; PostScriptum; Power Steering; Power Supply; Proposed
Standard; Public School

PSA
PSA is an abbreviation for Problem Statement Analyzer

PSC
PSC is an abbreviation for
Pittsburgh Supercomputer Center; Polar Stratospheric Clouds

PSDN
PSDN is an abbreviation for Public Switched
Data Network

PSDS
PSDS is an abbreviation for Public Switched Digital Service

PSE
PSE is an abbreviation for Programming Support Environment

PSF
PSF is an abbreviation for
Point Spread Function

PSG
PSG is an abbreviation for
Platoon SerGeant

PSI
PSI is an abbreviation for Performance Systems International; Power Systems, Incorporated

PSK
PSK is an abbreviation for Phase Shift Keying

PSL
PSL is an abbreviation for Problem Statement Language

PSN
PSN is an abbreviation for
Packet Switch Node

PSR
PSR is an abbreviation for Product Specific Realizations; PulSaR

PSS
PSS is an abbreviation for (unknown to
me, but something in the UK environment)

PST
PST is an abbreviation for
Pacific Standard Time

PSTN
PSTN is an abbreviation for Public Switched
Telephone Network

PT
PT is an abbreviation for
Pacific Time; Patrol Torpedo (as in PT boat); Physical Therapy; Physical Training

PTA
PTA is an abbreviation for Parent-Teacher Association

PTD
PTD is an abbreviation for Parallel Transfer Disk

PTL
PTL is an abbreviation for Praise The Lord (ministry)

PTN
PTN is an abbreviation for
Plant Test Number (actual number assigned for 800 service)

PTO
PTO is an abbreviation for Patent and Trademark Office; Please Turn Over; Power Take-Off

PTT
PTT is an abbreviation for
Post, Telephone and Telegraph administration

PTV
PTV is an abbreviation for Passenger Transport Vehicle

PUC
PUC is an abbreviation for Public Utilities Commision

PV
PV is an abbreviation for Photovoltaic

PVC
PVC is an abbreviation for Permanent Virtual
Circuit (see also VC); Poly-Vinyl Chloride

PVO
PVO is an abbreviation for
Pioneer Venus Orbiter

PW
PW is an abbreviation for Prisoner of
War (usually POW)

PWG
PWG is an abbreviation for Permanent Working Group

PX
PX is an abbreviation for
Post eXchange (see BX)

q.v.
q.v. is an abbreviation for ???? (
Latin(?): which see)

QAM
QAM is an abbreviation for Quadrature
Amplitude Modulation

QC
QC is an abbreviation for Quality Control;
Queen's Counsel (KC when queen reigning)

QD
QD is a medical abbreviation for Quaque Die (
daily)

QDA
QDA is an abbreviation for Quantity Discount Agreement

QED
QED is an abbreviation for Quod Erat Demonstrandum (which was to be demonstrated)

QEF
QEF is an abbreviation for Quod Erat Faciendum (which was to be done)

QEI
QEI is an abbreviation for Quod Erat Inveniendum (which was to be found out)

QET
QET is an abbreviation for Quantum Effect
Transistor

QIC
QIC is an abbreviation for Quarter-Inch Cartridge

QID
QID is an abbreviation for Quater In Die (four times a
day)

QLI
QLI is an abbreviation for Query Language Interpreter

QM
QM is an abbreviation for QuarterMaster

QMC
QMC is an abbreviation for QuarterMaster Corps

QMF
QMF is an abbreviation for Query Management Facility

QMG
QMG is an abbreviation for QuarterMaster General

QMS
QMS is an abbreviation for Quality
Micro Systems

QNS
QNS is an abbreviation for Quantity Not Sufficient

QSO
QSO is an abbreviation for Quasi-Stellar Object

QWERTY
QWERTY is an abbreviation for first six keys from left on
top alphabetic row of standard keyboard

R
R is an abbreviation for Restricted; Rolemaster

R&B
R&B is an abbreviation for
Rhythm and Blues (commonly R and B)

R&D
R&D is an abbreviation for Research and Development (commonly R and D)

RA
RA is an abbreviation for Regular
Army; Research Assistant; Royal Academy

RAAF
RAAF is an abbreviation for
Royal Australian Air Force

RACE
RACE is an abbreviation for Random Access Card Equipment

RACEP
RACEP is an abbreviation for Random Access and Correlation for Extended Performance

RAD
RAD is an abbreviation for
Radiation Absorbed Dose; Rapid Access Disk

RADAR
RADAR is an abbreviation for RAdio Detection And Ranging

RADM
RADM is an abbreviation for Rear
ADMiral

RAF
RAF is an abbreviation for
Royal Air Force

RAM
RAM is an abbreviation for Random Access Memory (R/W);
Red Academicia de Mexico (Mexican Academic Network)

RARDE
RARDE is an abbreviation for
Royal Armaments Research and Development Establishment

RARE
RARE is an abbreviation for R\'eseaux Associ\'
es pour la Recherche Europ\'eenne (the European Organization of Research Networks)

RAS
RAS is an abbreviation for Reliability, Availability, and Serviceability

RASC
RASC is an abbreviation for Residence Account Service Center

RATS
RATS is an abbreviation for Radio Amateur Telecommunications Society

RBC
RBC is an abbreviation for
Red Blood Count

RBI
RBI is an abbreviation for Runs Batted In

RBOC
RBOC is an abbreviation for Regional
Bell Operating Company

RC
RC is an abbreviation for
Red Cross; Regional Center; Resistor-Capacitor circuit (as in filters); Roman Catholic

RCA
RCA is an abbreviation for Radio Corporation of
America

RCAF
RCAF is an abbreviation for
Royal Canadian Air Force

RCAS
RCAS is an abbreviation for
Reserve Component Automation System

RCC
RCC is an abbreviation for Radio Common
Carrier

RCMP
RCMP is an abbreviation for
Royal Canadian Mounted Police

RCS
RCS is an abbreviation for Reaction Control System

RD
RD is an abbreviation for
Rural Delivery

RDA
RDA is an abbreviation for Remote
Data Access

RDBMS
RDBMS is an abbreviation for Relational DataBase Management System

RDF
RDF is an abbreviation for Radio Direction Finding

REA
REA is an abbreviation for
Rail Express Agency

RECON
RECON is an abbreviation for Reconnaissance

REM
REM is an abbreviation for Rapid
Eye Movement

REO
REO is an abbreviation for R. E.
Olds; Removable, Erasable, Optical

REXX
REXX is an abbreviation for Restructured EXtended eXecutor

RF
RF is an abbreviation for Radio Frequency; Radio Frequency

RFC
RFC is an abbreviation for Request For Comments (
ala ARPA Internet)

RFD
RFD is an abbreviation for
Rehoboth (MA) Fire Department; Rural Free Delivery

RFI
RFI is an abbreviation for Radio Frequency Interference; Radio Frequency Interference

RFP
RFP is an abbreviation for Request for Proposal

RFQ
RFQ is an abbreviation for Request for Quote

RFS
RFS is an abbreviation for Remote File System

RGB
RGB is an abbreviation for
Red Green Blue

RGP
RGP is an abbreviation for Raster Graphics Processor

RH
RH is an abbreviation for Right
Hand

RHC
RHC is an abbreviation for Regional (
Bell) Holding Company

RHS
RHS is an abbreviation for Right
Hand Side

RI
RI is an abbreviation for Rhode Island

RIACS
RIACS is an abbreviation for Research
Institute for Advanced Computer Science (NASA); Research Institute for Advanced Computer Science

RIAS
RIAS is an abbreviation for Radio In the
American Sector, berlin

RIF
RIF is an abbreviation for
Reading Is Fundamental; Reduction In Force

RILM
RILM is an abbreviation for Repertoire International de Literature Musicale

RIP
RIP is an abbreviation for Rest In
Peace (or Requiescat In Pace : latin); Routing Interchange Protocol

RIPE
RIPE is an abbreviation for R\'eseaux
IP Europ\'eenne (European IP Networks) (of RARE, q.v.)

RISC
RISC is an abbreviation for Reduced Instruction Set
Computer

RITA
RITA is an abbreviation for Recognition of Information Technology Achievement award

RJE
RJE is an abbreviation for Remote Job Entry

RLC
RLC is an abbreviation for Resistor Inductor
Capacitor

RLG
RLG is an abbreviation for Research Libraries Group

RLIN
RLIN is an abbreviation for Research Libraries Information Network (run by
RLG )

RLL
RLL is an abbreviation for Run Length Limited

RMA
RMA is an abbreviation for Radio Manufacturers' Association; Return Materials Authorization

RMATS
RMATS is an abbreviation for Remote Maintenance Administration and Traffic System

RMS
RMS is an abbreviation for Remote Manipulator System;
Richard M. Stallman; Root Mean Square; Royal Mail Ship

RN
RN is an abbreviation for Registered Nurse;
Royal Navy

RNA
RNA is an abbreviation for RiboNucleic
Acid

RNGC
RNGC is an abbreviation for Revised New General Catalog

RNZAF
RNZAF is an abbreviation for
Royal New Zealand Air Force

ROFF
ROFF is an abbreviation for Run-OFF

ROG
ROG is an abbreviation for Receipt Of Goods

ROM
ROM is an abbreviation for
Range Of Motion; Read-Only Memory; Rupture Of Membrane (as in birth)

ROSAT
ROSAT is an abbreviation for ROentgen SATellite

ROSE
ROSE is an abbreviation for
RATS Open Systems Environment; Remote Operations Service Entity (per ISO/CCITT layer 7)

ROTC
ROTC is an abbreviation for
Reserve Officers' Training Corps

ROTS
ROTS is an abbreviation for Rotary Out Trunks Selectors

ROYGBIV
ROYGBIV is an abbreviation for
Red, Orange, Yellow, Green, Blue, Indigo, Violet

RPC
RPC is an abbreviation for Remote Procedure Call

RPG
RPG is an abbreviation for RePort Generator; Role Playing Game

RPI
RPI is an abbreviation for
Rensselaer Polytechnic Institute

RPM
RPM is an abbreviation for Revolutions Per Minute

RPN
RPN is an abbreviation for Reverse Polish Notation

RPO
RPO is an abbreviation for Railway
Post Office

RPS
RPS is an abbreviation for Revolutions Per Second

RPV
RPV is an abbreviation for Remotely Piloted Vehicle

RQ
RQ is an abbreviation for RuneQuest

RR
RR is an abbreviation for
RailRoad; Route Relay; Rural Route

RRO
RRO is an abbreviation for Rate and Route Operator

RS
RS is an abbreviation for Recommended
Standard (EIA); Recording Secretary; Revised Status; Right Side; Royal Society

RSCS
RSCS is an abbreviation for Remote Spooling Communications Subsystem

RSFSR
RSFSR is an abbreviation for
Russian Soviet Federated Socialist Republic

RSN
RSN is an abbreviation for Real Soon
Now

RSU
RSU is an abbreviation for Remote Switching Unit

RSV
RSV is an abbreviation for Revised
Standard Edition

RSVP
RSVP is an abbreviation for Repondez S'il Vous Plait (please reply)

RSWC
RSWC is an abbreviation for Right Side
up With Care

RT
RT is an abbreviation for RadioTelephone; RealTime

RTA
RTA is an abbreviation for Remote Trunk Arrangement

RTAC
RTAC is an abbreviation for Regional Technical Assistance Center

RTF
RTF is an abbreviation for
Rich Text Format

RTFM
RTFM is an abbreviation for
Read The Fucking Manual

RTG
RTG is an abbreviation for Radioisotope Thermoelectric Generator; Radioisotope Thermoelectric Generator

RTLS
RTLS is an abbreviation for Return To Launch Site (Shuttle
abort mode)

RTR
RTR is an abbreviation for Ready to Run; Reel-To-Reel

RTS
RTS is an abbreviation for Request To Send (
EIA RS-232-C)

RTTY
RTTY is an abbreviation for Radio Teletype

RU
RU is an abbreviation for Receive Unit

RVD
RVD is an abbreviation for Remote Virtual Disk

RW
RW is an abbreviation for Right Worshipful; Right Worthy

RX
RX is an abbreviation for Receive

Ry
Ry is an abbreviation for Railway

S
S is an abbreviation for South; Supplement

S&C
S&C is an abbreviation for
Skull & Crossbones

S/C
S/C is an abbreviation for
SpaceCraft

SA
SA is an abbreviation for Salvation
Army; Seaman Apprentice; Service Assistant; Sex Appeal; Sine Anno (without date); South Africa; South America; Subject to Approval

SAA
SAA is an abbreviation for South Atlantic Anomaly; South Atlantic Anomaly; Systems Application Architecture

SAC
SAC is an abbreviation for Special Area Code (represent services, not places); Strategic
Air Command (see TAC); Strategic Air Command

SADD
SADD is an abbreviation for Students Against Drunk Driving

SAFENET
SAFENET is an abbreviation for Survivable Adaptable Fiberoptic Embedded Network

SAM
SAM is an abbreviation for Surface to
Air Missile; Surface-to-Air Missile

SAMA
SAMA is an abbreviation for Step-by-step Automatic Message Accounting

SAMPEX
SAMPEX is an abbreviation for Solar Anomalous and Magnetospheric Particle EXplorer

SAMTO
SAMTO is an abbreviation for Space And Missile Test Organization

SAO
SAO is an abbreviation for Smithsonian Astrophysical Observatory

SAP
SAP is an abbreviation for Second Audio Program; Service Access
Point

SAR
SAR is an abbreviation for Search And Rescue; Synthetic
Aperture Radar

SARA
SARA is an abbreviation for Satellite pour Astronomie Radio Amateur; Stichting Academisch Rekencentrum
Amsterdam (Amsterdam Universities Computing Center)

SAREX
SAREX is an abbreviation for Search and Rescue Exercise; Shuttle Amateur Radio
Experiment

SARTS
SARTS is an abbreviation for Switched Access Remote Test System

SAS
SAS is an abbreviation for Small
Astronomy Satellite; Space Activity Suit

SASE
SASE is an abbreviation for Self-Addressed Stamped Envelope

SASI
SASI is an abbreviation for Shugart Associates Systems
Interface

SAT
SAT is an abbreviation for Satellite

SAW
SAW is an abbreviation for Surface
Acoustic Wave

SBA
SBA is an abbreviation for Small Business Administration

SC
SC is an abbreviation for Secondary Channel; Sectional Center;
South Carolina; SubCommittee

SCA
SCA is an abbreviation for Shuttle
Carrier Aircraft

SCAD
SCAD is an abbreviation for Subsonic Cruise Armed
Decoy

SCADC
SCADC is an abbreviation for
Standard Central Air Data Computer

SCAME
SCAME is an abbreviation for SCreen oriented Anti-Misery Editor

SCAMP
SCAMP is an abbreviation for Single-Chip A-series Mainframe Processor

SCAN
SCAN is an abbreviation for Switched
Circuit Automatic Network

SCC
SCC is an abbreviation for Specialized Common Carriers; Switching Control Center

SCCS
SCCS is an abbreviation for Source Code Control System

SCE
SCE is an abbreviation for Signal Conversion Equipment; Structure Chart Editor

SCI
SCI is an abbreviation for
SpaceCraft Incorporated

SCIFI
SCIFI is an abbreviation for SCIence FIction (often used pejoratively of what really isn't)

SCO
SCO is an abbreviation for Santa Cruz Operation

SCOOPS
SCOOPS is an abbreviation for SCheme Object Oriented Programming System

SCOTS
SCOTS is an abbreviation for Surveilance and Control Of Transmission Systems

SCSI
SCSI is an abbreviation for Small
Computer Systems Interface

SCT
SCT is an abbreviation for Schmidt-Cassegrain
Telescope

SCUBA
SCUBA is an abbreviation for Self Contained Underwater Breathing Apparatus

SCUD
SCUD is an abbreviation for Subsonic Cruise Unarmed
Decoy

SD
SD is an abbreviation for
South Dakota

SDB
SDB is an abbreviation for Source(?) DeBugger

SDI
SDI is an abbreviation for
Standard Disk Interconnect; Strategic Defense Initiative

SDIO
SDIO is an abbreviation for Strategic Defense Initiative Organization

SDLC
SDLC is an abbreviation for Synchronous
Data Link Control

SDM
SDM is an abbreviation for Sub-rate
Data Multiplexer

SDN
SDN is an abbreviation for Software Defined Network; System Development Network (
Korea)

SDO
SDO is an abbreviation for Staff Duty Officer

SDSC
SDSC is an abbreviation for
San Diego Supercomputer Center

SDV
SDV is an abbreviation for Shuttle Derived Vehicle

SE
SE is an abbreviation for Service Engineer (see also
CE, FE); South East

SEATO
SEATO is an abbreviation for
SouthEast Asia Treaty Organization

SEC
SEC is an abbreviation for Security Exchange Commission

SECNAV
SECNAV is an abbreviation for SECretary of the NAVy

SED
SED is an abbreviation for Stream EDitor

SEI
SEI is an abbreviation for Software Engineering
Institute (Carnegie Mellon); Space Exploration Initiative

SEL
SEL is an abbreviation for Software Engineering Laboratory

SEM
SEM is an abbreviation for Scanning Electron Microscope

SEST
SEST is an abbreviation for Swedish-European Submillimeter
Telescope

SETI
SETI is an abbreviation for Search for Extra Terrestrial Intelligence; Search for ExtraTerrestrial Intelligence

SF
SF is an abbreviation for
San Francisco; Science Fiction; Speculative Fiction; Standard Form; Star Frontiers

SFRPG
SFRPG is an abbreviation for Science Fiction Role Playing Game

SG
SG is an abbreviation for StarGuard; SubGroup

SGML
SGML is an abbreviation for
Standard Generalized Markup Language

SHAPE
SHAPE is an abbreviation for Supreme Headquarters Allied
Powers Europe

SHAR
SHAR is an abbreviation for
SHell ARchiver

SHCD
SHCD is an abbreviation for
Sherlock Holmes Consulting Detective

SHF
SHF is an abbreviation for Super High Frequency (3-30GHz)

SHRPG
SHRPG is an abbreviation for Super
Hero Role Playing Game

SI
SI is an abbreviation for Staten Island

SIAM
SIAM is an abbreviation for Society for Industrial and Applied Mathematics

SID
SID is an abbreviation for Sudden Ionospheric Disturbance

SIG
SIG is an abbreviation for Special Interest Group

SIGCAT
SIGCAT is an abbreviation for Special Interest Group for
Cd-rom Applications Technology

SIMD
SIMD is an abbreviation for Single Instruction, Multiple
Data

SIMM
SIMM is an abbreviation for Single In-line Memory Module; System Integrated Memory Module

SINE
SINE is an abbreviation for SINE is not
EINE

SIPS
SIPS is an abbreviation for Satellite Imagery Processing System

SIR
SIR is an abbreviation for Shuttle Imaging
Radar

SIRTF
SIRTF is an abbreviation for Space (formerly Shuttle) InfraRed
Telescope Facility; Space Infrared Telescope Facility

SIS
SIS is an abbreviation for Strategic Information System

SISCOM
SISCOM is an abbreviation for Satellite Information System COMpany

SITA
SITA is an abbreviation for Societe Internationale Telecommunications Aeronautiques

SJ
SJ is an abbreviation for Society of Jesus

Skyhook
Skyhook is an abbreviation for Surface to space "elevator"
transportation system

SL
SL is an abbreviation for Salvage Loss; Space Launch; SpaceLab

SLA
SLA is an abbreviation for Special Libraries Association; Synchronous Line Adapter

SLAC
SLAC is an abbreviation for
Stanford Linear Accelerator Center

SLAN
SLAN is an abbreviation for
Sine Loco, Anno, (vel) Nomine (without place, year, or name)

SLAR
SLAR is an abbreviation for Side Looking Airborne
Radar; Side-Looking Airborne Radar

SLBM
SLBM is an abbreviation for
Submarine Launched Ballistic Missiles

SLC
SLC is an abbreviation for Space Launch Complex; Subscriber Loop
Carrier

SLDC
SLDC is an abbreviation for Synchronous
Data Link Control

SLIP
SLIP is an abbreviation for Serial Line
IP (sometimes SL/IP) (see also PPP); Serial Line Internet Protocol

SLP
SLP is an abbreviation for Super Long Play (
VHS VCR)

SLS
SLS is an abbreviation for Space(lab) Life Sciences

SM
SM is an abbreviation for Service Mark

SMA
SMA is an abbreviation for
Sergeant Major of the Army; Spectrum Manufacturers Association

SMC
SMC is an abbreviation for Small Magellanic
Cloud (see LMC); Small Magellanic Cloud

SMD
SMD is an abbreviation for Storage Module Device (
interface standard for disk drives); Surface Mounted Devices

SMDR
SMDR is an abbreviation for Station Message Detail Recording

SMDS
SMDS is an abbreviation for Switched Multi-megabit
Data Service

SME
SME is an abbreviation for Solar Mesosphere Explorer

SMEGMA
SMEGMA is an abbreviation for Sophisticated Modern Editor with Gloriously Magnificent Abilities

SMERSH
SMERSH is an abbreviation for
Abbr. of Russian phrase meaning "Death to the spies."

SMEX
SMEX is an abbreviation for SMall EXplorers

SMILS
SMILS is an abbreviation for Sonobuoy Missile
Impact Location System

SMM
SMM is an abbreviation for Solar Maximum
Mission (satellite 1980-1989)

SMTP
SMTP is an abbreviation for Simple Mail Transfer Protocol

SMU
SMU is an abbreviation for Southeastern
Massachusetts University; Southern Methodist University

SN
SN is an abbreviation for Science
News; Serial Number; Super Nova; SuperNova (e.g., SN1987A)

SNA
SNA is an abbreviation for Systems Network Architecture

SNADS
SNADS is an abbreviation for
SNA Distribution Services

SNAFU
SNAFU is an abbreviation for Situation Normal -- All Fouled
Up (also more profane versions)

SNAP
SNAP is an abbreviation for Shipboard Non-tactical Automated
data Processing program; Sub Network Access Protocol

SNCF
SNCF is an abbreviation for Societe National
des Chemins de Fer (French National Railways)

SNF
SNF is an abbreviation for Server-Natural Format

SNMP
SNMP is an abbreviation for Simple Network Management Protocol

SNOBOL
SNOBOL is an abbreviation for StriNg Oriented symbOLic Language

SNPA
SNPA is an abbreviation for SubNetwork
Point of Attachment

SNR
SNR is an abbreviation for Signal to Noise Ratio; Signal to Noise Ratio;
SuperNova Remnant

SNU
SNU is an abbreviation for Solar
Neutrino Units

SO
SO is an abbreviation for Seller's Option; Significant Other; Space
Opera; Strike Out

SOAP
SOAP is an abbreviation for Symbolic Optimizing Assembler Program

SOFIA
SOFIA is an abbreviation for Stratospheric Observatory For Infrared
Astronomy

SOH
SOH is an abbreviation for Start Of Header,
ASCII control character (dec=01,control-A)

SOHIO
SOHIO is an abbreviation for
Standard Oil of oHIO

SOHO
SOHO is an abbreviation for SOlar Heliospheric Observatory

SOL
SOL is an abbreviation for Short on Landing (or, colloquially, Shit Out of
Luck)

SONAR
SONAR is an abbreviation for
SOund Detection And Ranging

SONET
SONET is an abbreviation for Synchronous Optical Network

SOP
SOP is an abbreviation for
Standard Operating Procedure

SOS
SOS is an abbreviation for
Save Our Souls (International standard distress call, Morse ...---...); Silicon On Sapphire; Son of Stopgap (editor)

SP
SP is an abbreviation for Shore
Patrol; Short Play (VHS VCR); Southern Pacific; Stack Pointer; Star Patrol

SPA
SPA is an abbreviation for Software Publishers Association

SPAG
SPAG is an abbreviation for Standards Promotion and Applications Group

SPAN
SPAN is an abbreviation for Space Physics and Analysis Network (DECnet); Space Physics and Analysis Network

SPAR
SPAR is an abbreviation for
Stock Points Adp Replacement

SPARC
SPARC is an abbreviation for Scalable Processor ARChitecture; Standards, Planning, And Requirements Committee

SPAWAR
SPAWAR is an abbreviation for naval SPAce and WARfare command

SPC
SPC is an abbreviation for Software Productivity Consortium

SPCA
SPCA is an abbreviation for Society for the Prevention of Cruelty to
Animals

SPCC
SPCC is an abbreviation for Society for the Prevention of Cruelty to Children

SPDM
SPDM is an abbreviation for Special Purpose Dextrous Manipulator

SPEC
SPEC is an abbreviation for Systems Performance Evaluation Cooperative

SPITBOL
SPITBOL is an abbreviation for SPeedy ImplemenTation of
snoBOL

SPNI
SPNI is an abbreviation for Society for the
Protection of Nature in Israel

SPOT
SPOT is an abbreviation for Systeme Probatoire pour l'Observation de
la Terre

SPS
SPS is an abbreviation for Solar Power Satellite

SPUR
SPUR is an abbreviation for Systech Pluraxial Unplug Repeater

SQIID
SQIID is an abbreviation for Simultaneous Quad Infrared Imaging Device (at
NOAO)

SQL
SQL is an abbreviation for Structured Query Language

SQUID
SQUID is an abbreviation for Superconducting QUantum Interference Device

SRAM
SRAM is an abbreviation for Short
Range Attack Missile; Static RAM

SRB
SRB is an abbreviation for
Solid (fuel) Rocket Booster

SRG
SRG is an abbreviation for Short and Ring Ground (test)

SRI
SRI is an abbreviation for
Stanford Research Institute

SRM
SRM is an abbreviation for
Solid Rocket Motor

SRO
SRO is an abbreviation for Standing Room Only

SS7
SS7 is an abbreviation for Signalling System #7

SSA
SSA is an abbreviation for Social Security Administration

SSB
SSB is an abbreviation for Single Side Band

SSC
SSC is an abbreviation for Superconducting Super Collider

SSE
SSE is an abbreviation for South-SouthEast

SSF
SSF is an abbreviation for Space Station
Fred (er, Freedom); Space Station Freedom

SSFF
SSFF is an abbreviation for Showcase Software Factory of the Future

SSG
SSG is an abbreviation for Staff
SerGeant

SSI
SSI is an abbreviation for Small Scale Integration; Solid-State Imager; Space Services Incorporated; Space Studies
Institute; Supplemental Security Income

SSME
SSME is an abbreviation for Space Shuttle Main Engine

SSPF
SSPF is an abbreviation for Space Station Processing Facility

SSPS
SSPS is an abbreviation for Satellite Solar Power Station

SSR
SSR is an abbreviation for Secondary Surveillance
Radar; Soviet Socialist Republic

SSRMS
SSRMS is an abbreviation for Space Station Remote Manipulator System

SST
SST is an abbreviation for Spectroscopic Survey
Telescope; SuperSonic Transport

SSTO
SSTO is an abbreviation for Single Stage To
Orbit

SSTV
SSTV is an abbreviation for Slow
Scan TeleVision

SSW
SSW is an abbreviation for South-SouthWest

ST
ST is an abbreviation for Short
Ton

STARS
STARS is an abbreviation for Software Technology for Adaptable, Reliable Systems

STD
STD is an abbreviation for Sacrae Theologiae Doctor (doctor of sacred
theology); Sexually Transmitted Disease (replaces VD); State Transition Diagram; Subscriber Trunk Dialing (British, and elsewhere; equiv. DDD in USA)

STI
STI is an abbreviation for
Standard Tape Interconnect

STILO
STILO is an abbreviation for Scientific and Technical Intelligence Liaison Office

STIS
STIS is an abbreviation for Space
Telescope Imaging Spectrometer (to replace FOC and GHRS)

STL
STL is an abbreviation for
St. Louis (airport designation)

STN
STN is an abbreviation for SuperTwisted Nematic

STOL
STOL is an abbreviation for Short TakeOff and Landing

STP
STP is an abbreviation for Shielded Twisted Pair; Software Through Pictures;
Standard Temperature and Pressure (see NTP)

STRPG
STRPG is an abbreviation for
Star Trek: The Role-Playing Game

STS
STS is an abbreviation for Space
Transportation System (space shuttle)

STScI
STScI is an abbreviation for Space
Telescope Science Institute

STV
STV is an abbreviation for Single Transferable Vote; Space Transfer Vehicle

SUM
SUM is an abbreviation for Symantec Utilities for Macintosh

SUN
SUN is an abbreviation for SUN MicroSystems
Computer (not an Acronym); Stanford University Network

SUNOCO
SUNOCO is an abbreviation for
SUN Oil COmpany

SUNY
SUNY is an abbreviation for
State University of New York

SURAnet
SURAnet is an abbreviation for Southeastern Universities Research Association Network

SVID
SVID is an abbreviation for System V
Interface Definition

SW
SW is an abbreviation for
South West; SuperWorld

SWAS
SWAS is an abbreviation for Submillimeter Wave
Astronomy Satellite

SWBT
SWBT is an abbreviation for South Western
Bell Telephone

SWF
SWF is an abbreviation for ShortWave Fading

SWIFT
SWIFT is an abbreviation for Society for Worldwide Interbank Financial Communications

SWS
SWS is an abbreviation for Scientific Workstation Support

SXS
SXS is an abbreviation for Step by Step switching

T
T is an abbreviation for Traveler

T&T
T&T is an abbreviation for Tunnels & Trolls

T1
T1 is an abbreviation for 1.544Mbps , one of the
basic signalling systems 24x64Kb

T3
T3 is an abbreviation for 45Mbps (
eq 28 T1 channels)

TA
TA is an abbreviation for Teaching Assistant

TAC
TAC is an abbreviation for Tactical
Air Command (see SAC); Terminal Access Controller

TACACS
TACACS is an abbreviation for Terminal Access Controller Access Control System

TACCS
TACCS is an abbreviation for Tactical
Army Combat service support Computer System

TAE
TAE is an abbreviation for Transportable Applications Environment

TAL
TAL is an abbreviation for Trans-Atlantic
Abort Landing; Transatlantic Abort Landing (Shuttle abort plan)

TANSTAAFL
TANSTAAFL is an abbreviation for There Ain't No Such Thing As A Free Lunch

TAR
TAR is an abbreviation for Tape ARchiver

TASI
TASI is an abbreviation for
Time Assignment Speech Interpolation

TAU
TAU is an abbreviation for Thousand Astronomical Units

TB
TB is an abbreviation for
TuBerculosis

TBA
TBA is an abbreviation for To Be Announced

TBD
TBD is an abbreviation for To Be Determined; To Be Done

TC
TC is an abbreviation for Teachers College

TCA
TCA is an abbreviation for Terminal Controlled Airspace

TCP
TCP is an abbreviation for Transmission Control Protocol

TCP/IP
TCP/IP is an abbreviation for Transmission Control Protocol/Internet Protocol

TCS
TCS is an abbreviation for Thermal Control System

TCSEC
TCSEC is an abbreviation for Trusted
Computer System Evaluation Criteria (orange book)

TCT
TCT is an abbreviation for To Challenge Tomorrow

TD
TD is an abbreviation for Tardive Dyskinesia; TouchDown; Treasury Department

TDCC
TDCC is an abbreviation for
Transportation Data Coordinating Committee

TDE
TDE is an abbreviation for Transition Diagram Editor

TDI
TDI is an abbreviation for Trusted Database Interpretation

TDM
TDM is an abbreviation for Time-Division Multiplexer

TDR
TDR is an abbreviation for
Time Domain Reflectometer

TDRS
TDRS is an abbreviation for Tracking and
Data Relay Satellite

TDRSS
TDRSS is an abbreviation for Tracking and
Data Relay Satellite System

TDY
TDY is an abbreviation for Temporary DutY

TECO
TECO is an abbreviation for Tape Editor and COrrector; Text Editor and COrrector

TEFLON
TEFLON is an abbreviation for polyTEtraFLuOrethyleNe

TES
TES is an abbreviation for Thermal Emission Spectrometer (on
Mars Observer)

TFP
TFP is an abbreviation for
Tops Filing Protocol

TFS
TFS is an abbreviation for Translucent File System

TFT
TFT is an abbreviation for The Fantasy Trip; Thin Film
Transistor

TG
TG is an abbreviation for Thieves' Guild

TGV
TGV is an abbreviation for Tres Grande Vitesse (
French, Very High Speed); Two Guys and a VAX (humorous variant)

THIEF
THIEF is an abbreviation for THief Isn't Even Fine; This Here Isn't Even Fine

THOR
THOR is an abbreviation for Tandy High-intensity Optical Recording

TI
TI is an abbreviation for
Texas Instruments

TIA
TIA is an abbreviation for Thanks In
Advance; Transient Ischemic Attack

TIC
TIC is an abbreviation for TermInfo
Compiler

TID
TID is an abbreviation for Ter In Die (three times a
day); Transaction ID

TIFF
TIFF is an abbreviation for Tag Image File Format

TIP
TIP is an abbreviation for Terminal
Interface Processor

TIS
TIS is an abbreviation for Trusted Information Systems

TISN
TISN is an abbreviation for
Tokyo International Science Network (Japan)

TKO
TKO is an abbreviation for Technical Knock Out

TL
TL is an abbreviation for Total Loss

TLA
TLA is an abbreviation for Three Letter
Acronym

TLC
TLC is an abbreviation for Tender
Loving Care

TLI
TLI is an abbreviation for Transort-Level
Interface

TM
TM is an abbreviation for TradeMark

TMA
TMA is an abbreviation for Tycho Magnetic Anomaly (movie 2001)

TMAC
TMAC is an abbreviation for Treasury department's Multiuser Acquisition
Contract

TMIS
TMIS is an abbreviation for Telecommunications Management Information System

TMO
TMO is an abbreviation for
Telephone Money Order

TMP
TMP is an abbreviation for The
Morrow Project

TMRC
TMRC is an abbreviation for Tech
Model Railroad Club; Transportation Modeling Research Center

TN
TN is an abbreviation for
Tennessee; Twisted Nematic

TNC
TNC is an abbreviation for Threaded Neill Concelman (connector) (see also
BNC)

TNF
TNF is an abbreviation for Tumor Necrosis Factor

TNP
TNP is an abbreviation for Tech
Nickel Plate (RR)

TNT
TNT is an abbreviation for TriNitro
Toluene

TO
TO is an abbreviation for Telegraph Office; Turn Over

TODS
TODS is an abbreviation for Transactions on Database Systems (
ACM)

TOMS
TOMS is an abbreviation for Total
Ozone Mapping Spectrometer; Transactions on Mathematical Software (ACM)

TOOIS
TOOIS is an abbreviation for Transactions on Office Information Systems (
ACM)

TOP
TOP is an abbreviation for Technical Office Protocol

TOPLAS
TOPLAS is an abbreviation for Transactions on Programming Languages and Systems (
ACM)

TOPS
TOPS is an abbreviation for Traffic Operator Position System

TOPSMP
TOPSMP is an abbreviation for Traffic Operator Position System Multipurpose

TORES
TORES is an abbreviation for Text ORiented Editing System

TOS
TOS is an abbreviation for Transfer
Orbit Stage

TOW
TOW is an abbreviation for Tube launched, Optically tracked, and Wire guided

TOY
TOY is an abbreviation for
Time Of Year (clock)

TP
TP is an abbreviation for Transaction Processing; Transport Protocol (ISO/CCITT Transport Services (TP0-TP4))

TP4
TP4 is an abbreviation for Transport Protocol, class 4

TPC
TPC is an abbreviation for The Phone Company

TPI
TPI is an abbreviation for Tracks Per
Inch

TPO
TPO is an abbreviation for Traveling
Post Office

TPP
TPP is an abbreviation for TetraarylPorPhyrin

TPS
TPS is an abbreviation for Technical Publishing Software; TeleProcessing Services; Thermal
Protection System

TR
TR is an abbreviation for Tech Report; Technical Reference

TRG
TRG is an abbreviation for
Tip and Ring Ground

TROFF
TROFF is an abbreviation for Text RunOFF, text formatter

TRUSIX
TRUSIX is an abbreviation for TRUSted
unIX

TRW
TRW is an abbreviation for
Thompson, Ramo, and Woolridge

TS
TS is an abbreviation for
Top Secret

TSAP
TSAP is an abbreviation for Transport Service Access
Point

TSD
TSD is an abbreviation for Total System Design

TSP
TSP is an abbreviation for Teleprocessing Services Program;
Thrift Savings Plan; Time Synchronization Protocol; TriSodium Phosphate

TSR
TSR is an abbreviation for Terminate and Stay Resident

TSS
TSS is an abbreviation for Tethered Satellite System

TSTO
TSTO is an abbreviation for Two Stage to
Orbit

TTFN
TTFN is an abbreviation for Tah Tah, For
Now

TTL
TTL is an abbreviation for
Transistor Transistor Logic

TTMA
TTMA is an abbreviation for
Tennessee Tech Microcomputer Association

TTU
TTU is an abbreviation for
Tennessee Technological University

TTY
TTY is an abbreviation for TeleTYpe

TUNIS
TUNIS is an abbreviation for
Toronto UNIversity System

TV
TV is an abbreviation for
TeleVision

TVA
TVA is an abbreviation for
Tennessee Valley Authority

TW
TW is an abbreviation for Thieves' World

TWA
TWA is an abbreviation for Trans World Airlines

TWB
TWB is an abbreviation for Terrestrial WideBand

TWIMC
TWIMC is an abbreviation for To Whom It May Concern

TWT
TWT is an abbreviation for Traveling Wave Tube

TWX
TWX is an abbreviation for TeletypeWriter eXchange

TX
TX is an abbreviation for
Texas

Tx
Tx is an abbreviation for Transmit

U
U is an abbreviation for
Universe

u
u is an abbreviation for (representing the
greek mu) - micro

UA
UA is an abbreviation for United Artists

UAR
UAR is an abbreviation for United
Arab Republic; User Action Routine

UARS
UARS is an abbreviation for
Upper Atmosphere Research Satellite

UART
UART is an abbreviation for
Universal Asynchronous Receiver Transmitter

UBA
UBA is an abbreviation for UniBus Adapter

UBC
UBC is an abbreviation for
Universal Bibliographic Control; University of British Columbia

UBM
UBM is an abbreviation for Unpressurized Berthing Mechanism

UCAR
UCAR is an abbreviation for University Corporation for Atmospheric Research

UCB
UCB is an abbreviation for University of
California at Berkeley

UCD
UCD is an abbreviation for Uniform Call
Distributor; University of California at Davis

UCI
UCI is an abbreviation for University of
California at Irvine

UCL
UCL is an abbreviation for University College
London

UCLA
UCLA is an abbreviation for University of
California at Los Angeles

UCR
UCR is an abbreviation for University of
California at Riverside

UCSB
UCSB is an abbreviation for University of
California at Santa Barbara

UCSC
UCSC is an abbreviation for University of
California at Santa Cruz

UCSD
UCSD is an abbreviation for University of
California at San Diego

UCSF
UCSF is an abbreviation for University of
California at San Francisco

UDB
UDB is an abbreviation for Unified DataBase

UDMH
UDMH is an abbreviation for Unsymmetrical DiMethyl Hydrazine

UDP
UDP is an abbreviation for User Datagram Protocol

UEC
UEC is an abbreviation for User Environment Component

UFO
UFO is an abbreviation for Unidentified Flying Object

UGC
UGC is an abbreviation for Uppsala General Catalog

UH
UH is an abbreviation for
Upper Half

UHF
UHF is an abbreviation for Ultra High Frequency (300-3000MHz)

UID
UID is an abbreviation for Unique IDentifier; User IDentification

UIMS
UIMS is an abbreviation for User
Interface Management System

UIT
UIT is an abbreviation for Ultraviolet Imaging
Telescope (Astro package)

UIUC
UIUC is an abbreviation for University of
Illinois at Urbana-Champaign

UK
UK is an abbreviation for United Kingdom

UKST
UKST is an abbreviation for United Kingdom Schmidt
Telescope

UL
UL is an abbreviation for Underwriters Laboratory

ULANA
ULANA is an abbreviation for Unified Local-Area Network Architecture

UMOC
UMOC is an abbreviation for Ugliest
Man On Campus

UMT
UMT is an abbreviation for
Universal Military Training

UN
UN is an abbreviation for United Nations

UNESCO
UNESCO is an abbreviation for United Nations Educational, Scientific, & Cultural Organization

UNICEF
UNICEF is an abbreviation for United Nations International Children's Emergency Fund (
now United Nat. Child. Fund)

UNICS
UNICS is an abbreviation for UNiplex Information
Computer Services

UNIX
UNIX is an abbreviation for Not an
acronym at all. Was a joke on MIT's MULTICS.

UNMA
UNMA is an abbreviation for Unified Network Management Architecture

UNO
UNO is an abbreviation for United Nations Organization

UP
UP is an abbreviation for
Union Pacific

UPC
UPC is an abbreviation for
Universal Product Code

UPI
UPI is an abbreviation for United Press International; United Press International

UPS
UPS is an abbreviation for Uninterruptible Power Supply; United Parcel Service

UR
UR is an abbreviation for University of
Rochester

URI
URI is an abbreviation for University of Rhode Island

US
US is an abbreviation for United States (of
America)

USA
USA is an abbreviation for
Union of South Africa; United States Army; United States of America

USAF
USAF is an abbreviation for United States
Air Force

USAFA
USAFA is an abbreviation for United States
Air Force Academy (in Colorado Springs)

USAN
USAN is an abbreviation for University Satellite Network

USB
USB is an abbreviation for
Upper Side Band

USC
USC is an abbreviation for University of Southern
California

USCG
USCG is an abbreviation for United States
Coast Guard

USDA
USDA is an abbreviation for United States Department of Agriculture

USES
USES is an abbreviation for United States Employment Service

USFL
USFL is an abbreviation for United States
Football League

USGS
USGS is an abbreviation for United States Geological Survey

USIA
USIA is an abbreviation for United States Information Agency

USM
USM is an abbreviation for United States Mail

USMC
USMC is an abbreviation for United States
Marine Corps

USMP
USMP is an abbreviation for United States Microgravity Payload

USN
USN is an abbreviation for United States Navy

USO
USO is an abbreviation for United Service Organizations;
Unix Software Operation

USP
USP is an abbreviation for United States Pharmacopeia

USPS
USPS is an abbreviation for United States Postal Service

USR
USR is an abbreviation for User Service Routines

USS
USS is an abbreviation for United States
Ship

USSR
USSR is an abbreviation for
Union of Soviet Socialist Republics

USSS
USSS is an abbreviation for User Services and Systems Support

USW
USW is an abbreviation for Und So Weiter

UT
UT is an abbreviation for
UTah; Universal Time; University of Tennessee; University of Texas

UTC
UTC is an abbreviation for Coordinated
Universal Time; Universal Coordinated Time

UTnet
UTnet is an abbreviation for University of
Texas Network

UTP
UTP is an abbreviation for Unshielded Twisted Pair

UUCP
UUCP is an abbreviation for UNIX-to-UNIX Copy Program

UUG
UUG is an abbreviation for
Unix User Group

UV
UV is an abbreviation for UltraViolet

UVS
UVS is an abbreviation for UltraViolet Spectrometer

UW
UW is an abbreviation for UnderWriter; Univ of
Wisconsin

V&H
V&H is an abbreviation for Vertical and Horizontal (
CO coordinate tape)

V&V
V&V is an abbreviation for Villains & Vigilantes

VA
VA is an abbreviation for Veterans Administration;
Virginia

VAB
VAB is an abbreviation for Vehicle Assembly Building (formerly Vertical Assembly Building)

VAFB
VAFB is an abbreviation for Vandenberg
Air Force Base

VAN
VAN is an abbreviation for Value Added Network (e.g. Tymnet, Telenet, etc)

VANS
VANS is an abbreviation for Value-Added Network Services

VAR
VAR is an abbreviation for Value Added Remarketer (reseller)

VASI
VASI is an abbreviation for Visual Approach Slope Indicator

VAT
VAT is an abbreviation for Value Added Tax

VAX
VAX is an abbreviation for Virtual Address eXtended

VAXBI
VAXBI is an abbreviation for
VAX Bus Interconnect

VC
VC is an abbreviation for Viet Cong; Virtual
Circuit

Vcc
Vcc is an abbreviation for Voltage (Common Cathode?)

VCM
VCM is an abbreviation for Voice Coil Motor

VCO
VCO is an abbreviation for Voltage Controlled Oscillator

VCR
VCR is an abbreviation for VideoCassette
Recorder

VCU
VCU is an abbreviation for
Virginia Commonwealth University

VD
VD is an abbreviation for Venereal Disease (see also
STD)

VDFM
VDFM is an abbreviation for Virtual Disk File Manager

VDI
VDI is an abbreviation for Virtual Device
Interface

VDM
VDM is an abbreviation for
Vienna Development Method; Virtual Device Metafile

VDT
VDT is an abbreviation for Video Display Terminal

VEEGA
VEEGA is an abbreviation for Venus-Earth-Earth
Gravity Assist (Galileo flight path)

VF
VF is an abbreviation for Video Frequency; Voice Frequency

VFO
VFO is an abbreviation for Variable Frequency Oscillator

VFR
VFR is an abbreviation for Visual Flight Rules

VFW
VFW is an abbreviation for Veterans of Foreign Wars; Volunteer
Fire Department

VG
VG is an abbreviation for Very Good; Vicar-General

VGA
VGA is an abbreviation for Video Graphics Array

Vgg
Vgg is an abbreviation for Voltage (
Gate to Ground?)

VHDL
VHDL is an abbreviation for
Vhsic Hardware Description Language

VHF
VHF is an abbreviation for Very High Frequency (30-300MHz)

VHS
VHS is an abbreviation for Video
Home System (VCR)

VHSIC
VHSIC is an abbreviation for Very High Speed Integrated
Circuit

VI
VI is an abbreviation for VIsual editor

VIABLE
VIABLE is an abbreviation for Vertical Installation Automation BaseLinE

VILE
VILE is an abbreviation for
VI Like Emacs

VINE
VINE is an abbreviation for Vine Is Not
Emacs

VIP
VIP is an abbreviation for Very Important Person

VISTA
VISTA is an abbreviation for Volunteers In Service To
America

VITA
VITA is an abbreviation for Vme International
Trade Association

VJ
VJ is an abbreviation for Video Jockey

VL
VL is an abbreviation for Vulgar
Latin

VLA
VLA is an abbreviation for Very Large Array

VLBA
VLBA is an abbreviation for Very Long Baseline Array

VLBI
VLBI is an abbreviation for Very Long Baseline Interferometry

VLF
VLF is an abbreviation for Very Low Frequency (3-30KHz)

VLIW
VLIW is an abbreviation for Very Long Instruction Word

VLSI
VLSI is an abbreviation for Very Large Scale Integration

VLT
VLT is an abbreviation for Very Large
Telescope

VM
VM is an abbreviation for Virtual Memory

VM/CMS
VM/CMS is an abbreviation for Virtual Machine/Conversational
Monitor System

VMM
VMM is an abbreviation for Virtual Memory Manager

VMOS
VMOS is an abbreviation for Vertical
Metal Oxide Semiconductor (V-MOS) (see MOS)

VMR
VMR is an abbreviation for Vertical Market Reseller

VMS
VMS is an abbreviation for Vertical Motion Simulator; Virtual Memory System

VOA
VOA is an abbreviation for Voice Of
America

VOIR
VOIR is an abbreviation for
Venus Orbiting Imaging Radar (superseded by VRM)

VOIS
VOIS is an abbreviation for Voice-Operated Information System

VOQ
VOQ is an abbreviation for Visiting Officer's Quarters

VPI&SU
VPI&SU is an abbreviation for
Virginia Polytechnic Institute and State University

VRC
VRC is an abbreviation for Vertical Redundancy Character

VRM
VRM is an abbreviation for
Venus Radar Mapper (now called Magellan); Virtual Resource Manager

VSAT
VSAT is an abbreviation for Very Small
Aperture Terminal (satellite dish)

VSX
VSX is an abbreviation for X/open Verification Suite

VTAM
VTAM is an abbreviation for Virtual Telecommunications Access Method

VTOC
VTOC is an abbreviation for Volume Table Of Contents

VTOL
VTOL is an abbreviation for Vertical TakeOff and Landing

VTR
VTR is an abbreviation for VideoTape
Recorder

VUP
VUP is an abbreviation for
Vax Unit of Performance

VVSS
VVSS is an abbreviation for Vertical Volute
Spring Suspension

W
W is an abbreviation for
West; Width

WA
WA is an abbreviation for
Washington; Western Australia

WAC
WAC is an abbreviation for Womens
Air Corps

WAIS
WAIS is an abbreviation for Wide Area Information Server

WARC
WARC is an abbreviation for World Administrative Conference

WATS
WATS is an abbreviation for Wide Area
Telephone Service

WB
WB is an abbreviation for
Water Ballast; WayBill

WBC
WBC is an abbreviation for
White Blood Cells

WC
WC is an abbreviation for
Water Closet; Without Charge

WCTU
WCTU is an abbreviation for Women's Christian
Temperance Union

WD
WD is an abbreviation for
White Dwarf

WECo
WECo is an abbreviation for
Western Electric Company (manufacturing arm of AT&T)

WFPC
WFPC is an abbreviation for Wide Field / Planetary Camera

WFPCII
WFPCII is an abbreviation for
Replacement for WFPC

WG
WG is an abbreviation for Working Group

WH
WH is an abbreviation for WarHammer

WHBL
WHBL is an abbreviation for World
Home Bible League

WHCA
WHCA is an abbreviation for
White House Communications Agency

WHO
WHO is an abbreviation for World Health Organization

WI
WI is an abbreviation for
Wisconsin

WIMP
WIMP is an abbreviation for Windows/Icons/Mouse Programming(?)

WIPP
WIPP is an abbreviation for (nuclear) Waste Isolation
Pilot Plant

WIS
WIS is an abbreviation for
WWMCCS Information System

WITS
WITS is an abbreviation for
Washington Interagency Telecommunications System

WIYN
WIYN is an abbreviation for
Wisconsin / Indiana / Yale / NOAO telescope

WMSCR
WMSCR is an abbreviation for Weather Message Switching Center
Replacement

WOM
WOM is an abbreviation for Write Only Memory

WOP
WOP is an abbreviation for WithOut Papers

WOPR
WOPR is an abbreviation for
War Operations Planned Response (from "Wargames" movie)

WORM
WORM is an abbreviation for Write Once,
Read Many times

WOW
WOW is an abbreviation for Worlds of Wonder

WP
WP is an abbreviation for Word Processing and also Working Paper

WPI
WPI is an abbreviation for
Worcester Polytechnic Institute

WSI
WSI is an abbreviation for Wafer Scale Integration

WSMR
WSMR is an abbreviation for
White Sands Missile Range

WSW
WSW is an abbreviation for West-SouthWest

WTR
WTR is an abbreviation for
Western Test Range

WU
WU is an abbreviation for
Washington University; Western Union

WUPPE
WUPPE is an abbreviation for
Wisconsin Ultraviolet PhotoPolarimter Experiment (Astro package)

WV
WV is an abbreviation for
West Virginia

WW
WW is an abbreviation for World
War

WWI
WWI is an abbreviation for World
War I (The Great War)

WWII
WWII is an abbreviation for World
War II

WWMCCS
WWMCCS is an abbreviation for World-Wide Military Command and Control System

WY
WY is an abbreviation for
Wyoming

WYSIWIS
WYSIWIS is an abbreviation for What You See Is What I See

WYSIWYG
WYSIWYG is an abbreviation for What You See Is What You Get

XCF
XCF is an abbreviation for eXperimental Computing Facility

XD
XD is an abbreviation for without Dividend

XDR
XDR is an abbreviation for eXternal
Data Representation

XFER
XFER is an abbreviation for Transfer

XINU
XINU is an abbreviation for XINU Is Not
UNIX

XL
XL is an abbreviation for eXtra Large

XMM
XMM is an abbreviation for X-ray Multi Mirror

XMTR
XMTR is an abbreviation for transMiTteR (the X is for trans)

XNS
XNS is an abbreviation for Xerox Network Services

XO
XO is an abbreviation for eXecutive Officer

XOR
XOR is an abbreviation for eXclusive OR (logical function)

XPORT
XPORT is an abbreviation for Transport

XSECT
XSECT is an abbreviation for
cross SECTion

XTAL
XTAL is an abbreviation for
crysTAL (another version of x for crys, see XMTR)

XUI
XUI is an abbreviation for X-windows User
Interface

XUV
XUV is an abbreviation for eXtreme UltraViolet

YA
YA is an abbreviation for Yet Another

YACC
YACC is an abbreviation for Yet Another
Compiler Compiler

YB
YB is an abbreviation for YearBook

YMCA
YMCA is an abbreviation for
Young Mens Christian Association

YMHA
YMHA is an abbreviation for
Young Mens Hebrew Association

YOB
YOB is an abbreviation for Year Of Birth

YP
YP is an abbreviation for Yellow Pages

YRS
YRS is an abbreviation for Ysgarth Rules System

YSO
YSO is an abbreviation for
Young Stellar Object

YST
YST is an abbreviation for
Yukon Standard Time

YT
YT is an abbreviation for
Yukon Territory; Yukon Time

YTD
YTD is an abbreviation for Year To
Date

YWCA
YWCA is an abbreviation for
Young Womens Christian Association

YWHA
YWHA is an abbreviation for
Young Womens Hebrew Association

Z
Z is an abbreviation for
Zenith; Zero; and also Zulu (time)

ZB
ZB is an abbreviation for
Zero Beat

ZETA
ZETA is an abbreviation for
Zero Energy Thermonuclear Assembly

ZGS
ZGS is an abbreviation for
Zero Gradient Synchrotron

ZI
ZI is an abbreviation for Zonal
Index

ZIF
ZIF is an abbreviation for
Zero Insertion Force

ZIP
ZIP is a US
post office abbreviation for Zone Improvement Plan

ZK
ZK is a navy abbreviation for barrage
balloon

ZMRI
ZMRI is an abbreviation for
Zinc Metals Research Institute

ZPG
ZPG is an abbreviation for
Zero Population Growth

ZPRSN
ZPRSN is an abbreviation for
Zurich Provisional Relative Sunspot Number

ZST
ZST is an abbreviation for Zone
Standard Time

ZT
ZT is an abbreviation for Zone
Time

ZWEI
ZWEI is an abbreviation for Zwei Was
Eine