Table 5.11 — ECs whose label begins with G
| Label | Concept definition | Code |
| GALAXY | Any of numerous vast systems of <STAR>s, gas, and interstellar dust that exists separately in the universe and together contain nearly all of its visible matter; a galaxy [SOED, "galaxy", 1b]. | 468 |
| GANTRY | A frame <STRUCTURE> raised on side supports to span over or around something; a gantry. | 469 |
| GASTROPOD | A <MOLLUSC> of the class Gastropoda, the members of which typically have a flattened ventral foot for locomotion and a univalve shell; a gastropod. EXAMPLES Snail, slug, whelk, limpet. |
470 |
| GATE | A <BARRIER> that controls passage on a <LAND_TRANSPORTATION_ROUTE>; a gate. | 471 |
| GEODETIC_DATUM | A datum (see FDIS 19111, 4.9) describing the relationship of a coordinate system (see FDIS 19111, 4.7) to the <EARTH>; a geodetic datum or a horizontal datum. | 472 |
| GEOGRAPHIC_BASIN | The <TERRAIN_SURFACE_REGION> that is drained by a <RIVER> and its tributaries or that drains into a particular <LAKE> or <SEA>; a geographic basin. | 473 |
| GEOGRAPHIC_INFORMATION | A <LOCATION> or <REGION> where geographic information or statistics may apply. | 474 |
| GEOLOGIC_FAULT | A fracture in the <TERRAIN> with displacement on one side of the fracture relative to the other; a geologic fault. | 475 |
| GEOPHYSICAL_SURVEY_PATH | A path marked on the <TERRAIN> resulting from geophysical survey operations. | 476 |
| GEOPHYSICAL_SURVEY_POINT | A survey <LOCATION> established for the collection of geophysical data; a geophysical survey point. | 477 |
| GEOTHERMAL_OBJECT | A localized <TERRAIN_SURFACE_OBJECT> that is controlled by or derived from the heat of the interior of a <PLANET>. EXAMPLE Hot <SPRING>. |
478 |
| GLACIER | A large mass of land-based <SNOW_GROUND_COVER> and <ICE> moving slowly down a slope or <VALLEY_REGION> from above the snowline; a glacier. | 479 |
| GLADE | A <TRACT> with few or no <TREE>s that is surrounded by a <TREED_TRACT>; a clearing or glade. | 480 |
| GOLF_COURSE | A <TRACT> laid out for playing the game of golf; a golf course. | 481 |
| GOLF_DRIVING_RANGE | A <TRACT> used for practicing golf shots; a golf driving range. | 482 |
| GORGE | A deep, narrow <TERRAIN_CHANNEL> with steep rocky sides; a gorge [AHD, "gorge", 1]. | 483 |
| GOVERNMENT_BUILDING | A <BUILDING> devoted to the act or process of administration of public policy in a political unit; a government building. | 484 |
| GOVERNMENT_FACILITY | A <FACILITY> including one or more <GOVERNMENT_BUILDING>s; a government facility. | 485 |
| GRADATION_WORKS | A <STRUCTURE> over which brine trickles and is concentrated through increased evaporation; a gradation works. | 486 |
| GRAIN_ELEVATOR | A <NON_EMPTY_SET> of tall <STRUCTURE>s equipped for loading, unloading, processing, and/or storing grain; a grain elevator. | 487 |
| GRAIN_STORAGE_STRUCTURE | An enclosed <CONTAINER> used for storing grain or fodder; a grain bin or grain silo. | 488 |
| GRANDSTAND | A <STRUCTURE> for special viewing of outdoor events that has tiers of seats or standing room for spectators; a grandstand. | 489 |
| GRASS | Any <PLANT> of the large cosmopolitan family Gramineae (including cereals, reeds, and bamboos besides the characteristic <PLANT>s of pasture-land), members of which typically have erect jointed stems (culms) bearing narrow bladelike leaves and insignificant flowers, or any of various <PLANT>s resembling the members of Gramineae in appearance; grass [SOED, "grass", 4.b]. | 490 |
| GRASS_LAND | A <TRACT> covered by <GRASS> that has little or no woody tissue; a grassland. | 491 |
| GRAVE_MARKER | A <MARKER>, often located at a <CEMETERY>, indicating an individual gravesite; a grave marker. | 492 |
| GREEN_SPACE | A maintained <TRACT> that is covered by <VEGETATION>, which may also contain pathways, intended to improve the appearance of a <BUILT_UP_REGION> but not to be a <PARK>; a green space. | 493 |
| GREENHOUSE | A <BUILDING>, which is often constructed primarily of transparent <MATERIAL> (for example: glass or plastic), in which <<AIR_TEMPERATURE>> and <<RELATIVE_HUMIDITY>> can be controlled for the cultivation and/or protection of <PLANT>s; a greenhouse [SOED, "greenhouse", a]. | 494 |
| GROIN | A <STRUCTURE> that normally projects outward from a <SHORE> and protects a <BEACH> from erosion by disrupting the alongshore movement of <SAND> and other <SEDIMENT>s but not by preventing <WATER_WAVE>s from reaching the <SHORE>; a groin. | 495 |
| GROUND_SURFACE_ELEMENT | A surface <SOIL> characteristic of the <LAND>; a ground surface element. | 496 |
| GROUND_VEHICLE | A <VEHICLE> operating principally on <LAND>; a ground vehicle. | 497 |
| GROUNDS | A large enclosed <TRACT> surrounding or attached to a <BUILDING>, most commonly a <HOUSE>; grounds [SOED, "ground", 13]. | 498 |
| GUARD_TOWER | An elevated enclosed <BUILDING> including one or more <GUARDROOM>s; a guard tower. | 499 |
| GUARDHOUSE | A small enclosed <BUILDING> accommodating a guard or serving as a <DETENTION_FACILITY>; a guardhouse [SOED, "guardhouse"]. | 500 |
| GUARDROOM | A small enclosed <ROOM> accommodating a guard or serving as a <DETENTION_FACILITY>; a guardroom [SOED, "guardroom"]. | 501 |
| GUIDED_MISSILE_CRUISER | A <CRUISER> equipped with guided <MISSILE>s. | 502 |
| GUIDED_MISSILE_DESTROYER | A <DESTROYER> equipped with guided <MISSILE>s. | 503 |
| GUIDED_MISSILE_FRIGATE | A <FRIGATE> equipped with guided <MISSILE>s. | 504 |
| GULLY | A long, narrow, deep <TERRAIN_CHANNEL> that is caused by erosion and has steep banks; a gully. | 505 |
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