grounder
ground ball
groundball
hopper | (baseball) a hit that travels along the ground |
| ground stroke | a tennis return made by hitting the ball after it has bounced once |
dark ground illumination
dark field illumination | a form of microscopic examination of living material by scattered light, specimens appear luminous against a dark background |
| ground attack | an attack by ground troops |
| radar fire | gunfire aimed a target that is being tracked by radar |
ground-shaker
seismosaur | huge herbivorous dinosaur of the Cretaceous found in western North America |
ground snake
Sonora semiannulata | small shy brightlyinged terrestrial snake of arid or semiarid areas of western North America |
eastern ground snake
Potamophis striatula
Haldea striatula | in some classifications placed in genus Haldea, small reddish-grey snake of eastern North America |
ground rattler
massasauga Sistrurus miliaris | small pygmy rattlesnake |
| ground roller | Madagascan roller with terrestrial and crepuscular habits that feeds on e.g. insects and worms |
ground beetle
carabid beetle | predacious shining black or metallic terrestrial beetle that destroys many injurious insects |
ground squirrel
gopher spermophile | any of various terrestrial burrowing rodents of Old and New Worlds, often destroy crops |
mantled ground squirrel
Citellus lateralis | common black-striped reddish-brown ground squirrel of western North America, resembles a large chipmunk |
flickertail
Richardson ground squirrel
Citellus richardsoni | of sagebrush and grassland areas of western United States and Canada |
Arctic ground squirrel
parka squirrel
Citellus parryi | large ground squirrel of the North American far north |
eastern chipmunk
hackee
striped squirrel
ground squirrel Tamias striatus | small striped semiterrestrial eastern American squirrel with cheek pouches |
barren ground caribou
Rangifer arcticus | of tundra of northern Canada, in some classifications included in the species Rangifer tarandus |
ground sloth
megathere | gigantic extinct terrestrial sloth-like mammal of the Pliocene and Pleistocene in America |
| air search radar | a shipboard radar that searches for aircraft |
air-to-ground missile
air-to-surface missile | a missile designed to be launched from an airplane at a target on the ground |
anchor
ground tackle | a mechanical device that prevents a vessel from moving |
| Doppler radar | radar that uses the Doppler shift to measure velocity |
| early warning radar | a radar that is part of an early warning system |
| fire control radar | naval radar that controls the delivery of fire on a military target |
flat coat
ground
primer priming primer coat
priming coat
undercoat | the first or preliminary coat of paint or size applied to a surface |
| ground | (art) the surface (as a wall or canvas) prepared to take the paint for a painting |
| ground earth | a connection between an electrical device and a large conducting body, such as the earth (which is taken to be at zero voltage) |
| ground bait | bait scattered on the water to attract fish |
| ground cable | a mooring cable, runs from a buoy to a mooring anchor |
| ground control | a communication system for sending continuous radio messages to an airplane pilot who is making a groundontrolled approach to landing |
ground floor
first floor
ground level | the floor of a building that is at or nearest to the level of the ground around the building |
| ground plan | a floor plan for the ground level of a building |
groundsheet
ground cloth | a waterproofed piece of cloth spread on the ground (as under a tent) to protect from moisture |
hovercraft
ground-effect machine | a craft capable of moving over water or land on a cushion of air created by jet engines |
land mine
ground-emplaced mine
booby trap | an explosive mine hidden underground, explodes when stepped on or driven over |
| naval radar | naval equipment consisting of a shipboard radar |
| proving ground | a workplace for testing new equipment or ideas |
radar
microwave radar
radio detection and ranging
radiolocation | measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects |
radome
radar dome | a housing for a radar antenna, transparent to radio waves |
| surface search radar | a naval radar to search for surface targets |
three-dimensional radar
d radar | radar that will report altitude as well as azimuth and distance of a target |
| weather radar | radar that is able to detect clouds and precipitation |
| grade ground level | the height of the ground on which something stands, the base of the tower was below grade |
hyaloplasm
ground substance | the clear nongranular portion of the cytoplasm of a cell |
matrix intercellular substance
ground substance | the body substance in which tissue cells are embedded |
| ground | a relatively homogeneous percept extending back of the figure on which attention is focused |
background
ground | the part of a scene (or picture) that lies behind objects in the foreground, he posed her against a background of rolling hills |
| ground bass | a short melody in the bass that is constantly repeated |
blip
pip radar target | a radar echo displayed so as to show the position of a reflecting surface |
| radar echo | an electronic signal that has been reflected back to the radar antenna, contains information about the location and distance of the reflecting object |