G

g /di/ symbol the acceleration due to Earth’s gravity . abbreviation gram G /di/ abbreviation giga-GA abbreviation general aviation gain /e.n/ noun 1. an increase .
There is a gain of heat by the Earth due to solar radiation. . a gain in altitude
an increase in altitude 2. an increase in signal power, voltage, or current . The amplifier boosts the gain of the incom-ing signal. 3. a benefit or advantage . verb 1. to increase . He failed the test because the aircraft gained 100 ft in the 360° level turn. 2. to get or obtain . She gained a pass in her meteorology exam.
gale /e.l/ noun a very strong wind usually blowing from a single direction
. Gales are forecast for the area.
gallon /l.n/ noun 1. . imperial gallon unit of volume in the British Imperial System, used in liquid meas-ure and sometimes in dry measure, equal to 4.546 litres . The system deliv-ers fuel at the rate of 100 to 2,000 gal-lons per hour. Abbreviation gal 2. a unit of volume in the US Customary Sys-tem, used in liquid measure, equal to
3.785 litres
GAMA abbreviation General Aviation Manufacturers Association
gamma rays /m. re.z/ plural noun electromagnetic radiation given off by some radioactive substances .
Gamma rays are given off when radio-active material breaks down.
gap /p/ noun 1. a space between objects or points 2. the difference .
Micro switches have a very small gap between make and break. 3. an opening . The pilot could see the airfield through a gap in the clouds.
gas /s/ noun a state of matter other than solid and liquid . Oxygen and nitrogen are gases. . gas turbine engine an engine with a turbine which is rotated by expanding hot gases
gaseous /si.s/ adjective relating to, or existing as a gas . The atmosphere is the gaseous envelope surrounding the earth.
gasket /sk.t/ noun any of a wide variety of seals or packings used between matched machine parts or around pipe joints to prevent the escape of a gas or fluid . Seals, gaskets and packing make a seal by being squeezed between two surfaces.
gasoline /s.lin/ noun US a liq-
uid made from petroleum, used as a fuel in an internal combustion engine
GAT abbreviation general air traffic gate /e.t/ noun 1. a device for con-trolling the passage of water or gas through a pipe . The waste gate may be controlled manually by the pilot. . Dur-ing a descent from altitude, with low power set, the turbocharger waste gate is fully closed. 2. a circuit with many inputs and one output that works only when a particular input is received . A logic gate is almost the same as a switch. 3. a device to prevent a lever from being moved to an incorrect set-ting . It is necessary to move the rpm control lever through a feathering gate to the feathering position.