Gross Monthly IncomeThe income you earn in a month before taxes and other deductions. It may also include rental income, self-employed income, income from alimony, child…
Gross national product (GNP)The market value of goods and services produced by labor and property supplied by U.S. residents, regardless of where they are located.
Gross operating surplusValue derived as a residual for most industries after subtracting total intermediate inputs, compensation of employees, and taxes on production and…
Gross outputConsists of sales, or receipts, and other operating income, plus commodity taxes and changes in inventories.
Gross private domestic investmentPrivate fixed investment and change in private inventories. It is measured without a deduction for consumption of fixed capital (CFC), includes…
Gross spreadIn an initial public offering (IPO), the gross spread is the difference between what the underwriters pay the issuing company per share and the per share…
Gross Vehicle Weight Rating (GVWR)The maximum weight of a vehicle, including curb weight (the weight of the vehicle on its own) and payload (the weight of cargo).
GroundA device used to protect the user of any electrical system or appliance from shock.
Ground Blizzard WarningWhen blizzard conditions are solely caused by blowing and drifting snow.
Ground ClutterA pattern of radar echoes from fixed ground targets (buildings, hills, etc.) near the radar.
ground constantsThe electrical parameters of earth, such as conductivity, permittivity, and magnetic permeability.
ground controlPhysical points on the ground whose positions are known with respect to some horizontal coordinate system and/or vertical datum.
ground currentIn the presence of an electrical fault, the current that flows in the protective ground wire of a power distribution system.
Ground Entry Point (GEP)OBSOLETE. GEPs provide the communications interfaces between the SDS space orbital/sub-orbital elements and the C 2 E. See IFICS.
Ground failurePermanent ground displacement capable of damaging structures that may occur as a result of differential settlement, liquefaction, lateral spreading, or…
Ground fault matsMats made of insulating materials that do not conduct electricity.
Ground Fog(abbrev. GF) Fog produced over the land by the cooling of the lower atmosphere as it comes in contact with the ground.
Ground Heat FluxThe flux of heat from the ground to the earth's surface; a component of the surface energy budget.
Ground LoopIn geothermal heat pump systems, a series of fluid-filled plastic pipes buried in the shallow ground, or placed in a body of water, near a building.
Ground motionA general term including all aspects of ground motion, namely particle acceleration, velocity, or displacement, from an earthquake or other energy source.
Ground motion (shaking)The movement of the Earth's surface from earthquakes. Ground motion is produced by seismic waves that are generated by a sudden slip on a fault and travel…
Ground motion parametersNumerical values representing vibratory ground motion, such as particle acceleration, velocity, and displacement, frequency content, predominant period…
Ground operatorA company that provides local travel services, including transportation or guide services.
ground planeAn electrically conductive surface that serves as the near-field reflection point for an antenna. Note: A ground plane may consist of a natural (e.g.
ground potentialThe zero reference level used to apply and measure voltages in a system. Note: A potential difference may exist between this reference level and the…
Ground receive sitesA satellite dish and associated computer which receives signals from the GOES satellite, decodes the information, and transmits it to a another site for…
Ground ReflectionSolar radiation reflected from the ground onto a solar collector.
Ground RentPayment for the use of land when title to a property is held as a leasehold estate (that is, the borrower does not actually own the property, but has a…
ground startA method of signaling from a terminal or subscriber loop to a switch, in which method one side of a cable pair is temporarily grounded.
Ground StrokeThe current that propagates along the ground from the point where a direct stroke of lightning hits the ground.
Ground WaterWater that flows or seeps downward and saturates soil or rock, supplying springs and wells.
Ground Water DivideA line on a water table where on either side of which the water table slopes downward.
Ground Water FlowStreamflow which results from precipitation that infiltrates into the soil and eventually moves through the soil to the stream channel.
Ground Water HydrologyThe branch of hydrology that specializes in ground water; its occurrence and movements; its replenishment and depletion; the properties of rocks that…
Ground Water MiningPumping ground water from a basin where the safe yield is very small, thereby extracting ground water which had accumulated over a long period of time.
Ground water mining (overdraft)Pumping of ground water for irrigation or other uses, at rates faster than the rate at which the ground water is being recharged.
Ground Water OutflowThat part of the discharge from a drainage basin that occurs through the ground water.
Ground water rechargeThe flow to ground water storage from precipitation, inflitration from streams, and other sources of water.
Ground Water RunoffThat part of the runoff which has passed into the ground, has become ground water, and has been discharged into a stream channel as spring, or seepage…
Ground water tableThe upper boundary of ground water where water pressure is equal to atmospheric pressure, i.e.
ground waveIn radio transmission, a surface wave that propagates close to the surface of the Earth.
ground windowThe interface or transition point between the isolated and integrated ground planes.
Ground ZeroThe point on the surface of the earth at, or vertically below or above, the center of a planned or actual nuclear detonation.
Ground-Based Interceptor (GBI)A kinetic energy exoatmospheric interceptor with long flyout range to provide, where possible, a multiple engagement capability for defense of the U.S.
Ground-Based Radar (GBR)A task-able, modular, multi-function, phased-array radar that provides surveillance, tracking and engagement planning data in post-boost, midcourse, and…
Ground-Based Radar Terminal (GBRT)The sensor for the NMD system. An X-band, ground-based, phased array radar capable of detecting, tracking, and providing discrimination information to a…
ground-return circuitA circuit using a common return path that is at ground potential. Note: Earth may serve as a portion of the ground-return circuit. 2.
ground-start signalingA type of analog voicegrade access line signaling that requires the customer interface (CI) to provide a ground on the ring conductor at the network…
Grounded iceIce that has run aground or is contact with the ground underneath it.
GroundwaterAll water below the surface of the land. It is water found in the pore spaces of bedrock or soil, and it reaches the land surface through springs or it…
Groundwater basin: (1) A general term used to define a groundwater flow system that has defined boundaries and may include permeable materials that are capable of storing…
Groundwater overdraftThe condition in which water extractions from an aquifer exceed recharge processes in such excess as to cause substantial and sustained decreases in…
Groundwater rechargeInflow of water to a ground-water reservoir from the surface. Infiltration of precipitation and its movement to the water table is one form of natural…
group(also referred to as a Technology Center or TC) - a unit of several Group Art Units in the mechanical, electrical, chemical or design area, managed by one…
group addressIn a communications network, a predefined address used to address only a specified set of users. Synonym collective address.
group alerting and dispatching systemA service feature that (a) enables a controlling telephone to place a call to a specified number of telephones simultaneously, (b) enables the call to be…
Group Art Unit(may be abbreviated "AU," "GAU" or "Grp Art Unit" on Office correspondence) - a working unit responsible for a cluster of related patent art.
group delayThe rate of change of the total phase shift with respect to angular frequency, dθ/d, through a device or transmission medium, where θ is the total phase…
group delay timeIn a group of waves that have slightly different individual frequencies, the time required for any defined point on the envelope (i.e.
group distribution frame (GDF)In frequency-division multiplexing, a distribution frame that provides terminating and interconnecting facilities at the group level, i.e.
Group Health PlanWhen groups of individuals are covered under one insurance contract. Usually people are offered group health plans by their employers (see "individual…
group ID (GID)The number used by UNIX systems to identify groups.
group index (N)In fiber optics, for a given mode propagating in a medium of refractive index η, the velocity of light in vacuum, c, divided by the group velocity of the…
Group leaderAn individual who has been given the responsibility of coordinating tour and travel arrangements for a group.
Group membershipsThe groups to which a user account belongs. Permissions and rights granted to a group are also provided to its members.
Group of companiesSeveral insurance companies under common ownership and often common management.
Group Policy containerAn object that is stored in Active Directory Domain Services and that is associated with a given Group Policy object.
Group Policy Management EditorThe name of the window for the editor snap-in that accompanies the Group Policy Management Console.
Group Policy ObjectA collection of Group Policy settings, stored at the domain level as a virtual object that consists of a Group Policy container and a Group Policy…
Group Policy object (GPO)A logical concept that is used to represent a single collective set of computer and/or user policies.
Group Policy Object EditorThe Microsoft Management Console (MMC) snap-in that is used to edit Local Group Policy settings.
Group Policy templateA collection of files that contains Group Policy information and that is stored on the SYSVOL share.
Group rateA special discounted rate charged by suppliers to groups. Also called tour rate.
Group tourA travel package for an assembly of travelers that has a common itinerary, travel date, and transportation.
Group tour and group leaderGroup Tour: A travel agent type company which plans motorcoach trips. Group Leader: A small, informal group, such as a church group, scout troop, or…
Group VelocityThe speed at which a particular wave front or swell train advances.
groupwareSoftware designed to operate on a network and allow several people to work together on the same documents and files.
GroutA fluid mixture of cement and water or sand, cement, and water used to seal joints and cracks in a rock foundation.
Grout BlanketAn area of the foundation systematically grouted to a uniform shallow depth.
Grout capA concrete pad or wall constructed to facilitate subsequent pressure grouting of the grout curtain beneath the grout cap.
Grout CurtainA barrier produced by injecting grout into a vertical zone, usually narrow (horizontally), and in the foundation to reduce seepage under a dam.