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Acronyms
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
| G | Giga |
| G&A | General and Administrative |
| G&C | Guidance and Control |
| G-5 | Group of Five (economic leaders: France, Germany, Japan, UK, US) |
| G-7 | Group of Seven (G-5 + Canada and Italy) |
| G-Force | Gravitational Force |
| G-job | Government Job |
| G-LOC | G-Induced Loss of Consciousness |
| G-PAD | Generalized polling protocol - Packet Assembly/Disaaembly |
| G-WARS | Ground Wars |
| G/G | Ground-to-Ground |
| G/IDEP | Government/Industry Data Exchange Program |
| G/S | Glideslope |
| G/S | Ground Speed |
| G/W | Gateway |
| G/W | Gross Weight |
| G3G | Global Third Generation |
| GA | Go-Around |
| GA | General Aviation |
| GA | General Agreement |
| GA | General Alert |
| GA | General Assembly |
| GA | Ground Attack |
| GAA | Government Auditing Agency |
| GAAP | Generally Accepted Accounting Principles |
| GAAS | Galium Arsenide |
| GaAs | Gallium Arsenide |
| GACC | Ground Attack Control Center |
| GAFB | General Airframe Bulletin |
| GAFC | General Airframe Change |
| GAIL | Glide Angle Indicator Light |
| GAIN | Galley Inserts |
| GAIS | Government Automated Information System |
| GAL | Generic Array Logic |
| GAL | Global Address List |
| GAL | Graphics Adapter Language |
| GAM | GPS-Aided Munition |
| GAMA | General Aviation Manufacturers Association |
| GAMS | Generalized Algebraic Modeling System |
| GaN | Gallium Nitride |
| GANS | Government Air Navigation System |
| GAO | General Accounting Office |
| GAO | Government Accounting Office |
| GAP | Generic Access Profile |
| GAR | Governor’s Authorized Representative |
| GART | Graphics Address Remapping Table |
| GASP | Gatekeeper Synchronization Protocol |
| GASS | Generic Acoustic Simulation System |
| GAT | General Air Traffic |
| GAT | Generic Application Template |
| GAT | Global Air Traffic |
| GAT | Government Acceptance Test |
| GAT | Group Audio Terminal |
| GATEC | Government Acquisition Through Electronic Commerce |
| GATERS | Ground Air Teleoperated Robotic System |
| GATM | Global Air Traffic Management |
| GATMS | Global Air Traffic Management System |
| GATT | General Agreement on Tariffs and Trade |
| GAWS | Graphical Analysis Workstation |
| GB | Generation Breakdown |
| GB | Great Britain |
| Gb | Gigabyte |
| GB or Gb | Gigabytes (billion) |
| Gb/S | Giga bits per second |
| GBAD | Ground Base Air Defense |
| GBAD | Ground Based Air Defense |
| GBCS | Ground Based Common Sensor |
| GBL | Government Bill of Lading |
| GBL | Government Bill of Landing |
| GBL | Ground-Based Laser |
| GBPS | Giga (billion) Bits Per Second |
| GBR | Ground Based Radar |
| GBS | Global Broadcast Satellite |
| GBS | Global Broadcast Services |
| GBS | Global Broadcast System |
| GBS | Ground Based Sensor |
| GBSC | Group of Blocks Start Code |
| GBST | Ground Based Software Tool |
| GBU | Guided Bomb Unit |
| GC | Garbage Collector (program that scavanges unused memory) |
| GCA | Ground-Controlled Approach. A system that uses a ground-based controller to control the approach of an aircraft by transmitting instructions to the pilot. |
| GCA | Graphic Communications Association (SGML authors) |
| GCA | Ground Control Approach |
| GCA | Ground Controlled Approach |
| GCAS | Ground Collision Avoidance System |
| GCB | Generator Circuit Breaker |
| GCC | GNU C Compiler |
| GCC | Generic Command Center |
| GCC | Generic Conference Control |
| GCCS | Global Command and Control System |
| GCCS-A | Global Command and Control System-Army |
| GCCS-M | Global Command and Control System-Maritime |
| GCDIS | Global Change Data and Information System |
| GCE | Ground Combat Element |
| GCHQ | Government Communication Headquarters (UK) |
| GCI | Global Commerce Initiative |
| GCI | Ground Controlled Intercept |
| GCI | Ground Controlled Interception |
| GCN | Government Computer News |
| GCO | Government Concept of Operations |
| GCO | Grand Commander |
| GCOS | General Chief of Staff |
| GCR | Group Code Encoding |
| GCR | Group Coded Recording |
| GCS | Ground Clutter Suppression |
| GCS | Global Conceptual Schema |
| GCSS | Global Combat Support System |
| GCSS | Global Command Support System |
| GCSS-AF | Global Combat Support System - Air Force |
| GCSS-AF | Global Combat Support System-Air Force (formerly BLSM II) |
| GCT | Greenwich Civil Time |
| GCU | Generator Control Unit |
| GCU | Guidance and Control Unit |
| GD | Global Defect |
| GD | Graphic Display |
| GD | Guidance |
| GDA | Gimbaled Disk Antenna |
| GDAS | Global Deployment Analysis System |
| GDB | GNU DeBugger |
| GDD/D | Global Data Dictionary and Directory |
| GDDM | Graphical Data Display Manager |
| GDDM | Graphics Data Display Manager |
| GDEM | Generalized Digital Environmental Model |
| GDI | Graphics Device Interface |
| GDIP | General Defense Intelligence Program |
| GDLP | Ground Data Link Processor |
| GDM | Group on Defense Matters |
| GDMO | Generic Definition of Managed Objects |
| GDMO | Guidelines for the Definition of Managed Objects |
| GDMS | Global Data Management System |
| GDOP | Geometric Dilution Of Precision. A term referring to error introduced in a GPS calculation due to the positioningof the satellites and the receiver. |
| GDP | Ground Delay Program |
| GDP | General Defense Plan |
| GDP | Graphic Display Processor |
| GDP | Gross Domestic Product |
| GDPR | Group of Deputy Permanent Representatives (on the Public Disclosure of NATO Documents) |
| GDR | Global Depository Receipt |
| GDSS | Global Decision Support System |
| GDT | Global Descriptor Table |
| GE | Ground Environment |
| Ge | Germanium |
| GEADGE | German Air Defense Ground Environment |
| GECAS | General Electric Capital Aviation Services |
| GEDI | Global EDI |
| GEF | Generic Extensibility Framework |
| GEIS | General Electric Information Systems (replaced by GXS) |
| GEM | Government, Education and Major accounts |
| GEM | Graphics Environment Manager |
| GEM | Ground Effect Machine |
| GEMS | Generic Establishment Management System |
| GEMS | Graphics Environment for Multimedia |
| GEN | Generator |
| GENA | General Event Notification Architecture |
| GENCODE | Generalized Coding, Trademark of Graphics Communications Association |
| GENESSIS | Generic Scene Simulation Software |
| GENESYS | Critical Component Generation System |
| GENSER | General Service |
| GENSPEC | General Specifications |
| GEO | Geostationary Earth Orbit |
| GEO | Geosynchronous Earth Orbit |
| GEOFILE | Geographic Location File |
| GEOLOC | Geographic Location |
| GEOLOC | Geolocation Code |
| GEOREF | Geographic Reference |
| GEOREF | Geographic Reference System |
| GEOREF | Geographic Reference System Report |
| GEOS | Geostationary Earth Orbit Satellite |
| GEOSITREP | Geographic Situation Report |
| GEP | Generic Plan |
| GEP | SATCOM Ground Entry Point |
| GES | Ground Earth Station |
| GETS | Government Emergency Telecommunications Service |
| GFA | Gunfire Area |
| GFAE | Government Furnished Aeronautical Equipment |
| GFAP | General Framework Agreement for Peace |
| GFBL | Government Furnished Baseline |
| GFCI | Ground Fault Circuit Interrupters |
| GFCS | Gun Fire Control System |
| GFD | Government Furnished Data |
| GFE | Government Furnished Equipment |
| GFE | Government Furnished Material |
| GFF | Government Furnished Facilities |
| GFI | Government Final inspection |
| GFI | Government Furnished Information |
| GFI | Ground Fault Interrupter |
| GFLOP | Giga-Floating Point Operations |
| GFM | Government Furnished Material |
| GFP | Generic Frame Protocol |
| GFP | Generic Functional Procedures |
| GFP | Government Furnished Property |
| GFR | Gap Filler Radar |
| GFR | General Functional Requirements |
| GFR | Guaranteed Frame Rate |
| GFS | Government Furnished Software |
| GFSK | Guassian Frequency Shift Keying |
| GFWS | Ground Proximity Warning System |
| GG | Graphics Generator |
| GG | Generic Goal |
| GGI | Global Grid Initiative |
| GH | Ground Handling |
| GHATN | Global Humanitarian Assistance Transportation Network |
| GHMA | Global Humanitarian Mine Action |
| GHQ | General HeadQuarters |
| GHz | Gigahertz |
| GI | Geospatial Information |
| GI | Government Issue |
| GIAC | Graphical Input Aggregate Control |
| GIANT | GPS Interface And Navigation Tool |
| GIB | GNSS Integrity Broadcast |
| GIC | GPS Integrity Channel |
| GIC | Generic Instrument Class |
| GICB | Ground-Initiated Comm-B |
| GICOD | Good Idea Cutoff Data |
| GICR | Government/Industry Cooperative Research |
| GID or gid | Group IDentity (a unix value) |
| GIDEI | General Input Device Emulation Interface |
| GIDEP | Government-Industry Data Exchange Program |
| GIDEP | Government/Industry Data Exchange Program |
| GIDS | Global IP Directory Service |
| GIF | Graphic Imagery Files |
| GIF | Graphics Interchange Format |
| GIG | Global Information Grid |
| GIG ES | Global Information Grid Enterprise Services |
| GIG-BE | Global Information Grid Bandwith Expansion |
| GigaPOP | Gigabit capacity Point of Presence |
| GIGO | Garbage-In Garbage-Out |
| GIGO | Garbage In Garbage Out |
| GII | Global Information Infrastructure |
| GILS | Government Information Locato System |
| GILS | Government Information Locator System |
| GIMADS | Generic Integrated Maintenance Diagnostic System |
| GIN | Graphics Input |
| GINA | Graphical Identification and Authentication |
| GIOD | Globally Interconnected Object Databases |
| GIP | Generic Intelligence Plan |
| GIS | Geodetric Information System |
| GIS | Geographic Information System |
| GIS | Geographical Information System |
| GISA | German Information Security Agency |
| GISN | Global IP-Telephony Subscriber Number |
| GIT | Generic Identifier Transport |
| GITS | Government Information Technology Services |
| GIUK | Greenland, Island, and United Kingdom |
| GIV | Geological Information Visualization |
| GK | GateKeeper |
| GKMS | General Key Management System |
| GKS | Graphical Kernal System |
| GKS | Graphical Kernel System |
| GLC | Group Logistic Coordinator |
| GLCM | Ground Launched Cruise Missile |
| GLE | General Law Enforcement |
| Glidepath | The approach path used by an aircraft during an instrument landing or the portion of the glideslope that intersects the localizer. The glidepath does not provide guidance completely to a touchdown point on the runway. |
| Glideslope | The vertical guidance portion of an ILS system. |
| GLLD | Ground Laser Locator/Designator |
| GLM | General Linear Model |
| GLM | Gigabit Link Module |
| GLO | Ground Liaison Officer |
| GLOBIXS | Global Information Exchange System (Navy) |
| GLoMO | Global Mobile information system |
| GLONASS | Global Navigation Satellite System (Russian) |
| GLONASS | Global Navigation Satellite System |
| GLP | Geographic Location Profile |
| GLS | GPS Landing System |
| GLS | Glide Slope |
| GLS | Global Logical Schema |
| GLU | GPS Landing Unit |
| GM | Guidance Material |
| GM | General Manager |
| GM | Global Memory |
| GM | Ground Map |
| GM | Group Manager |
| GM | Group Modem |
| GMAP | Geometric Modeling Applications Interface Protocol |
| GMAT | Greenwich Mean Astrononical Time |
| GMC | Ground Movement Control |
| GMC | Global Motion Compensation |
| GMD | Global Missile Defense |
| GMD | Groundbased Mid-course Defense (formerly National Missile Defense (NMD)) |
| GMD | Groundbased Midcourse Defense |
| GMDSS | Global Maritime Distress and Safety System |
| GMF | Ground Mobile Force |
| GMI | General Military Intelligence |
| GMII | Gigabit Media Independent Interface |
| GML | Generalized Markup Language (IBM predecessor to SGML) |
| GMLS | Guided Missile Launching System |
| GMM | Global Multimedia Mobility |
| GMPLS | Global Multimode Precision Landing ,System |
| GMR | Geostationary Mobile Radio |
| GMR | Giant Magnetoresistive |
| GMRA | Government Management Reform Act of 1994 |
| GMS | Gas Management System |
| GMS | Global Messaging Service |
| GMT | Greenwich Mean Time. GMT is a universal time scale based upon the mean angle of rotation of the earth about its axis in relation to the sun. It is referenced to the prime meridian that passes through Greenwich,England. |
| GMT | General Military Training |
| GMT | Greenwich Mean Time |
| GMTI | Ground Moving Target Identification |
| GMV | Government Motor Vehicle |
| GMWS | Guided Missile Weapon System |
| GND | Ground |
| GNE | Gross Navigational Error |
| GNLU | GNSS-based Navigation and Landing Unit |
| GNMA | Government National Mortgage Association (Ginnie Mae) |
| GNMP | Government Network Management Profile |
| GNOME | GNU Network Object Model Environment |
| GNOSC | Global Network Operations and Security Center |
| GNP | Gross National Product |
| GNR | Global Navigation Receiver |
| GNR | General Nuclear Response |
| GNS | Global Network Services |
| GNSS | Global Navigation Satellite System |
| GNSS | Global Navigational Satellite System |
| GNSSP | ICAO Global Navigation Satellite System Panel |
| GNSSU | GNSS Unit |
| GNU | Gnu’s Not UNIX |
| GO | General Order (military) |
| GOB | Ground Order of Battle |
| GOCO | Government Owned, Contractor Operated |
| GOCO | Government Owned/Contractor Operated |
| GOE | Government Owned Equipment |
| GOES | Geo-stationary Operational Environmental Satellites |
| GOEWDS | Group of Experts on Warning and Detection Systems |
| GOF | Glass Optical Fiber |
| GOF | Group of Forces |
| GOGO | Government Owned, Government Operated |
| GOGO | Government-Owned, Government-Operated (Facility) |
| GOMAC | Government Microcircuit Applications Conference |
| GOMM | General Organizational Maintenance Manuals |
| Goniometer | A device that combines the two signals from two loop antennas. The goniometer (or resolver) contains two fixed coils and one rotating coil. The rotating coil is connected to the ADF bearing indicator needle to indicate the relative bearing from the aircraft to the NDB station. The mechanical position of the rotor represents the bearing of the station,and the position is electrically transmitted to the RMI. |
| GOP | Guidelines for Operational Planning |
| GOPLAT | Gas and Oil Platform |
| GOS | Grade of Service |
| GOSC | General Officer Steering Committee |
| GOSG | General Officer Steering Group |
| GOSIP | Government Open System Interconnection Protocol |
| GOSIP | Government Open Systems Interconnection Protocol |
| GOSS | Guide to Open Systems Specification |
| GOTS | Government Off The Shelf |
| GOTS | Government Off-The-Shelf |
| GOTS | Government-Off-The-Shelf |
| GP | General Pracitioner |
| GP | General Protection |
| GP | General Purpose |
| GP | Generic Practice |
| GP | Group |
| GP | Guided Projectile |
| GP(SAL&IR) | Guided Projectile (Semi-Active Laser and Infrared) |
| GPADIRS | Global Positioning,Air Data,Inertial Reference System |
| GPALS | Global Positioning and Location System |
| GPALS | Global Protection Against Limited Strikes |
| GPB | Global Pipeline Burst (SRAM) |
| GPC | Government Purchase Card |
| GPCAS | Global Product Conformity Assessment System |
| GPCSC | General Purpose Computer Support Center |
| GPD | Global Positioning Device |
| GPE | General Purpose Event |
| GPEF | Generic Package of Elementary Functions |
| GPETE | General Purpose Electronic Test Equipment |
| GPF | General Purpose Force |
| GPG | General Political Guidelines |
| GPGM | General Purpose Ground mine |
| GPH | Gallons Per Hour |
| GPI | General Purpose Interface |
| GPI | Government Preliminary Inspection |
| GPIB | General Purpose Instrument Bus |
| GPIB | General Purpose Interface Bus |
| GPIS | Graphics Peripheral Interface Standard (became CGI) |
| GPLR | Government Purpose License Rights |
| GPM | Gallons Per Minute |
| GPM | General Page Message |
| GPM | General Processing Module |
| GPMRC | Global Patient Movement Requirements Center |
| GPNS | Ground Proximity Warning System |
| GPO | General Post Office |
| GPO | Government Printing Office |
| GPON | Gigabit-per-second Passive Optical Networks |
| GPPB | General Power Plant Bulletin |
| GPPC | Government Property in the Possession of Contractors |
| GPPF | Generic Package of Primitive Functions |
| GPR | Ground Penetrating Radar |
| GPRA | Government Performance & Results Act of 1993 |
| GPRA | Government Performance and Results Act |
| GPRS | General Packet Radio Service |
| GPS | Global Positioning System (see NAVSTAR) |
| GPS | Global Positioning Satellite |
| GPS | General Purpose Segment |
| GPS | Global Positioning System |
| GPS | Global Protection System |
| GPS | Ground Processing System |
| GPSS | General Purpose Simulation System |
| GPSSU | Global Positioning System Sensor Unit |
| GPTE | General Purpose Test Equipment |
| GPU | Ground Power Unit |
| GPWC | Ground Proximity Warning Computer |
| GPWS | Ground Proximity Warning System |
| GQ | General Quarters |
| GQA | Government Quality Assurance |
| GQM | Goal-Question-Metric |
| GR | Gear |
| GRACE | Generic Reusable Ada Components for Engineering |
| Gradient | The rate at which a variable quantity increases or decreases. |
| Gray Code | Special binary code used to transmit altitude data between framing pulses of a transponder reply. A cyclic code having only one digit change at a time. Used in Mode C to transmit aircraft barometric altitude. Also known as Gilham code. |
| GRB | Gamma Ray Burst |
| GRBX | Gearbox |
| GRD | Guard |
| GRDS | Generic Radar Display System |
| GRE | Graduate Record Examination |
| GREWMS | Global Requirements Estimator for Wartime Medical Support |
| GRF | Graduated Readiness Force |
| GRFL | Groundwater Remediation Field Laboratory |
| GRIS | GCCS Reconnaissance Information System |
| GRM | Government Resources Management |
| GRMS | Generalized Rate Monotonic Scheduling |
| GRND | Ground |
| GRORBAT | Ground Order of Battle |
| Ground Wave | A radio wave that travels along the earthÕs surface. |
| GRP | Geographic Reference Point |
| GRP | Glass Reinforced Plastic |
| GRU | Grid Reference Unit |
| GRWSIM | Ground Warfare Simulation |
| GS | Glideslope |
| GS | Ground Speed |
| GS | General Staff |
| GS | General Support |
| GS | Glide Slope |
| GS | Graceful Shutdown |
| GS | Ground Support |
| GSA | General Services Administration |
| GSA | General Support Artillery |
| GSA | Global Security Architecture |
| GSA | Global Software Application |
| GSA | Government Services Agency |
| GSB | Gateway Signaling Buffer |
| GSBCA | General Services Board of Contract Appeals |
| GSC | General System Connect |
| GSC | Group Switching Centre |
| GSCC | Global Simulation Coordination Center |
| GSD | Ground Slant Distance |
| GSE | Ground Support Equipment |
| GSFC | Goddard Space Flight Center |
| GSII | Government Services Information Infrastructure |
| GSIS | Graphics Standard Interface Standard |
| GSM | Global Shared Memory |
| GSM | Global System Mobile |
| GSM | Global System for Mobile Communications |
| GSM | Ground Station Module |
| GSMP | General Switch Management Protocol |
| GSN | Global Subscriber Number |
| GSO | Geostationary Orbit |
| GSO | Geostationary Satellite Orbit |
| GSORTS | Global Status of Resources and Training |
| GSORTS | Global Status of Resources and Training System |
| GSP | Glare Shield Panel |
| GSP | Gaming Service Provider |
| GSP | General Strike Plan |
| GSP | Generalized System of Preferences |
| GSPA | Generic Signal Processor Architecture |
| GSR | General Support Reinforcing |
| GSR | General Support-Reinforcing |
| GSR | Ground Surveillance Radar |
| GSS | General Security Support |
| GSS | Generalized Spectral Shaping |
| GSS | Generalized Stimulation Simulation |
| GSS | Generic Security Service |
| GSS | Ground Station Simulator |
| GSS | Guidelines and Standards Subcommittee |
| GSS-API | Generic Security Service Application Program Interface |
| GSSAP | Generic Security Service Applications Programming |
| GST | General Systems Theory |
| GST | Greenwich Sidereal Time |
| GSTN | General Switched Telephone Network |
| GSTPA | Global Straight Through Processing Architecture |
| GSU | Geographically Separated Unit |
| GSV | Gray Scale Voltage(s) |
| GSZ | Ground Safety Zone |
| GT | Greater Than |
| GT | Global Title |
| GT | Group Tactic |
| GT | Gun Target |
| GTA | General Terms Agreement |
| GTA | Global Title Address |
| GTA | Ground Test Article |
| GTAI | Global Title Address Information |
| GTC | Data Link Ground Terminal Computer |
| GTC | Gain Time Control |
| GTCT | Global Tropical Cyclone Tracks Database |
| GTDB | Generic Transformed Data Base |
| GTE | General Telephone and Electric |
| GTE | Ground Threat Emitter |
| GTF | Generalized Timing Formula |
| GTIN | Gene Therapy Information Network |
| GTIN | Global Trade Identification Number (UPC + 2) |
| GTIP | Gravity Tolerance Improvent Program |
| GTIS | Government Telecommunications and Information Services (Canada) |
| GTK | GIMP Toolkit |
| GTL | Gun Target Line |
| GTL | Gunning Transceiver Logic |
| GTM | Ground Truth Model |
| GTMV | Ground Target Modeling and Validation |
| GTN | Global Transportation Network |
| GTO | Gate Turn-off switch |
| GTR | General Technical Requirements |
| GTRI | George Tech Research Institute |
| GTRI | Georgia Tech Research Institute |
| GTS | Global Telecommunications Service |
| GTS | Global Telecommunications System |
| GTSC | Global Telecommunication Standardization Collaboration |
| GTT | Global Text and Total conversation services |
| GTT | Global Title Translation |
| GTV | Ground Test Vehicle |
| GUARDFIST | Guard Unit Armory Device Full Crew Interactive Simulation Trainer |
| GUI | Graphic/User Interface |
| GUI | Graphical User Interface |
| GUID | Global Unique IDentifier |
| GUID | Guidance |
| GUP | Gatekeeper Update Protocol |
| GVE | Graphics Vector Engine |
| GVIB | Gearbox vibration |
| GVO | Government Vehicle Other |
| GW | Gateway |
| GW | Gross Weight |
| GW | Guided Weapon |
| GWAC | Government Wide Acquisition Contract |
| GWAC | Government Wide Agency Contract |
| GWC | Gateway Controller |
| GWEF | Guided Weapons Evaluation Facilit |
| GWEN | Ground Wave Emergency Network |
| GWIP | Global Weather Intercept Program |
| GWLOC | Gateway Controller |
| GWS | Graphical Weather Services |
| GWS | Global Weather Service |
| GWS | Groupware Server |
| GWS | Gunfire Weapons System |
| GXML | Guideline for eXtensible Markup Language |
| GXS | Global eXchange Services (formerly GEIS) |
| Gyroscope | A rotating device that will maintain its original plane of rotation, no matter which direction the gyroscope mount is turned. |

