Browse Acronyms

Browse the acronym list:

G Listing

G
– gauss [convert to SI: tesla (T)]
– giga [billion, prefix (10⁹)]
– gilbert [convert to SI: ampere (A)]

g
– acceleration due to gravity
– gram

G&A
general and administrative (refers to cost accounting)

G&A/GPS
general and administrative and general plant services (refers to cost accounting)

G&W
Gulf and Western

g-cm
gram-centimeter

G-M
Geiger-Müller

G-M C
Geiger-Müller counter

g.l.b.
greatest lower bound ("GLB" is preferred) (math)

g/kg
grams per kilogram

G/O
goals and objectives

g/t
grams per metric ton

Ga
gallium (element, Z = 31)

GA
– chemical nerve agent (Tabum)
– General Atomic (a company name)
– Georgia (use only with ZIP code addresses)

ga.
gauge

Ga.
Georgia (use after city names in references, lists, tables, footnotes, bibliographies, and indexes; spell out in text; state name is not needed with Atlanta)

GAAP
generally accepted accounting principles

GaAs
gallium arsenide

GAC
– General Advisory Committee
– Goodyear Aerospace Corporation
– granulated activated carbon

GAF
glass absorption filter

GAIA
GUI-Driven Application Interchange Architecture

gal
gallon [convert to SI: cubic meters (m³), which is preferred over liters (L); see restrictionslisted under "L" for "liter"]

gal/min
gallons per minute [convert to SI: cubic meters per second (m³/s), which is preferred over liters per second (L/s); see restrictions listed under "L" for "liter"]

GAMETAG
Global Atmospheric Measurements Experiment of Tropospheric Aerosols and Gases

GAO
– General Accounting Office
– goal achievement objective

GARP
Global Atmosphere Research Project

GAT
Goodyear Atomic Corporation

GATE
GARP Atlantic Tropic Experiment

GATERS
ground-air telerobotics system

GATF
Graphic Arts Technical Foundation

GATT
General Agreement on Tariffs and Trade

GAUGE
General Automation Users Group Exchange

GAX
– generator-absorber heat exchange (cycle)
– generator-absorber-heat exchanger
– generator-absorber heat pump exchange

GB
– chemical nerve agent (Sarin)
– gigabyte
– glove box

GBD
gas bubble disease

GBL
Government Bill of Lading

GBR
gas breeder reactor

gc
gigacycle [spell out; convert to SI: gigahertz (GHz)]

GC
– Garrett Corporation
– gas chromatograph/chromatography

g_c
gravitational constant

GC-MS
gas chromatograph - mass spectrometer

GC/MS
gas chromatography/mass spectrometry

GCC
– gasification combined cycle
– generalized consistency checking

GCCP
Global Climate Change Program (DOE)

GCD
– greater confinement disposal (technology)
– greatest common divisor ("gcd" is preferred) (math)

gcd
greatest common divisor (preferred over "GCD") (math)

GCEP
Gas Centrifuge Enrichment Plant/Project

GCFR
gas-cooled fast reactor

GCHP
– ground-coil heat pump
– ground-coupled heat pump

GCM
General Circulation Model (Department of Energy/Department of Agriculture)

GCMC
Global Climate Modeling Code (CHAMMP)

GCO
– Generation Certificate Official (waste generation)
– generator certification official
– generator-certified official

GCP
generator-certified person

GCPO
Gas Centrifuge Project Office

GCR
gas-cooled reactor

GCRP
– Gas-Cooled Reactor Program
– Global Change Research Program

GCT
Ground Challenge Code (PFS)

Gd
gadolinium (element, Z = 64)

Gd₂O₃
gadolinium oxide

GDA
Generalized Dataset Allocator (computer program)

GDC
– General Design Criteria (DOE 6430.1A)
– General Dynamics Corporation
– glow discharge cleaning

GDE
gaseous diffusion enrichment

GDG
generation data group (computer term)

GDP
– gaseous diffusion plant
– Geoecology Data Project
– gross domestic product

gdp
gallons per day per person [convert to SI: cubic meters per second per person (m³/s per person), which is preferred over liters per second per person (L/s per person); see restrictions listed under "L" for "liter"]

GDR
giant dipole resonance

GDS
Graphics Development Section (C&TS)

GE
General Electric Company

Ge
germanium (element, Z = 32)

GEAT
General Employee Access Training (RRD)

GEC
Government Enrichment Corporation

GEDI
guided electromagnetic defensive interceptor

GEEI
Global Energy Efficiency Initiative

GEIS
generic environmental impact statement (see DEA, DEIS, DES, DPEIS, EA, EAW, EIA, EIAP, EIS, ER, ERIS, ESR, FEA, FEIS, FES, FPEIS, PA/SI, PDEA, PDEIS, PDES, PEIA, PEIS, and SEIS)

GEM
– (not an abbreviation; word derived from "gammas, electrons, and muons")
– Graduate Degrees for Minorities in Engineering, Inc.

GeMSDOE
General Medical Sciences (DOE)

GEOM
geographically detailed model

GEOSECS
Geochemical Ocean Sections Study

GEP
good engineering practice

GER
General Employee Retraining (see GET)

GERP
General Employee Radiological Protection

GERT
General Employee Radiological Training

GES
– Generator Entry System
– Ground Engineering Systems

GESS
General Escape System Simulation (U.S. Navy)

GET
General Employee Training (see GER)

GFBFPLICE
gas-fueled Braun free-piston linear internal combustion engine

GFCI
ground fault circuit interrupter

GFDL
Goddard Fluid Dynamics Laboratory

GFHP
gas-fired heat pump

GFI
ground-fault interrupter

GFLOPS
billions of floating-point operations per second (measure of computer processing capability)

GFM
government-furnished materials

GFMDL
Gas Flow Metrology Development Laboratory

GHTD
Geothermal and Hydropower Technologies Division

GHz
gigahertz

GI
gastrointestinal

Gi
gilbert [convert to SI: ampere (A)]

GIAS
geographic information and analysis system

GIC
Guaranteed Insurance Contract

GIDEP
Government-Industry Data Exchange Program

GIF
Gamma Irradiation Facility

gigacycle
[do not abbreviate this word; convert to SI: gigahertz (GHz)]

GIS
geographic information system

GISC
Generic Intelligent Control System (SNL)

GISP
Greenland Ice Sheet Program

GISS
Goddard Institute for Space Studies

GIT
– gastrointestinal tract
– Georgia Institute of Technology

GJ
– gigajoule
– Grand Junction Project Office (also GJPO) (DOE)

GJPO
Grand Junction Project Office (also GJ) (DOE)

GKS
Graphical Kernel System

GL
General Linear (math)

GLAS
Goddard Laboratory of Atmospheric Sciences

GLB
greatest lower bound (preferred over "glb" and "g.l.b.") (math)

glb
greatest lower bound ("GLB" is preferred) (math)

GLCA
Great Lakes Colleges Association

GLCA/ACM
Great Lakes Colleges Association/Associated Colleges of the Midwest

GLEEP
Graphite Low-Energy Experimental Pile (U.K.) (see BEPO)

GLGP
Geothermal Loan Guaranty Program

GLOBE
Global Legislators for a Balanced Environment

GLP
good laboratory practice

GM
– gain margin
– Geiger-Müller (Geiger-Mueller if ü is not available)
– General Merit (U.S. Army)
– General Motors Corporation

gm
gigameter

GMA
Great Miami Aquifer

GMCC
Geophysical Monitoring for Climatic Change

GMD
geomagnetic disturbance

GMR
Graduated Mobilization Response

GMT
Greenwich mean time

GNP
gross national product

GNSI
General Nuclear Systems, Inc.

GOC
government-owned container

GOCO
government-owned, contractor-operated (facility/installation)

GOH
Government of Haiti

GOOSE
Generalized Object-Oriented Simulation Environment (computer language)

GOP
Government of Pakistan

GP
general purpose

GPA
grade point average

GPCGP
Great Plains Coal Gasification Plant

gpd
gallons per day [convert to SI: cubic meters per second (m³/s), which is preferred over liters per second (L/s); see restrictions listed under "L" for "liter"]

GPE
– general plant equipment
– general-purpose equipment

GPF
– general plant facility
– General Protection Fault
– general-purpose facility

GPHS
general-purpose heat source

GPIB
general-purpose interface bus

GPM
– generalized perturbation method
– gradient projection method

gpm
– gallons per mile [convert to SI: cubic meters per kilometer (m³/km), which is preferred over liters per kilometer (L/km); see restrictions listed under "L" for "liter"]
– gallons per minute [convert to SI: cubic meters per second (m³/s), which is preferred over liters per second (L/s); see restrictions listed under "L" for "liter"]

GPO
Government Printing Office

GPP
general plant project

GPR
ground-penetrating radar

GPS
– general plant services
– geopositioning satellite
– Global Positioning System

GPU
General Public Utilities Corporation

GQM
groundwater quality monitoring

GQR
giant quadrupole resonance

gr/scf
grains per standard cubic foot [convert to SI: kilograms per cubic meter (kg/m³)]

grad
– vector operation (math)
– gradient (math)

GRAIL
Gene Recognition and Analysis Internet Link (system)

grain
[do not abbreviate this word; convert to SI: kilogram (kg)]

GRAS
generally recognized as safe

GRESS
Gradient Enhanced Software System (ORNL)

GRF
global reference frame

GRGL
groundwater residual guidance level

GRI
Gas Research Institute (Chicago, Illinois)

GRIDSS
Global Resource Intelligent Decision Support System

G_rms
root-mean-square acceleration

GRS
Gesellschaft für Reaktorsicherheit

GS
General Schedule (U.S. Army)

GSA
– General Services Administration
– generator station area
– Geological Society of America
– Government Services Administration
– group snapshot analyzer

GSBCA
General Services Board of Contract Appeals

GSF
– Gesellschaft für Strahlen und UmweltforschungmbH München
– gross square feet

GSFC
Goddard Space Flight Center

GSI
– Gesellschaft für Schwerionenforschung
– gonadal somatic index

GSMNP
Great Smoky Mountains National Park

GSO
– goods and services on order
– Guest Services Office

GST
Gunite storage tank

GSU
Gulf States Utilities

GT
– gas turbine
– gigatonne

GTA
gas tungsten arc (welding)

GtC
gigatons (or gigatonnes) of carbon

GTCC
greater than Class C (nuclear waste)

GTCRP
Global Temperature Change Research Program

GTDA
general technical data available

GTF
– Ground Test Facility
– Grout Treatment Facility

GTID
geologically targeted infield drilling

GTO
gate turn-off (thyristor)

GTS
global trip subsystem

GU
Guam (use only with ZIP code addresses)

Guam
(spell out unless used with ZIP code addresses)

GUI
graphical user interface

GVW
gross vehicle weight

GW
– gigawatt
– groundwater

GW(e)
gigawatt (electrical)

GWd
gigawatt-day

GWh
gigawatt-hour

GWM
groundwater monitoring

GWP
global warming potential

GWPA
Groundwater Protection Act

GWPM
Groundwater Protection Plan Management Plan

GWPO
Groundwater Program Office

GWPP
– Groundwater Program Plan
– Groundwater Protection Program

GWPS
groundwater protection standard

GWSS
Groundwater Supply Survey

GWTF
Groundwater Treatment Facility

GWU
George Washington University

Gy
gray (absorbed dose, energy)

GZ
ground zero

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