gas
- n the state of matter distinguished from the solid and liquid states by: relatively low density and viscosity; relatively great expansion and contraction with changes in pressure and temperature; the ability to diffuse readily; and the spontaneous tendency to become distributed uniformly throughout any container
- n a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely
- n a volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines
- n a state of excessive gas in the alimentary canal
- n a pedal that controls the throttle valve
he stepped on the gas - n a fossil fuel in the gaseous state; used for cooking and heating homes
- v attack with gas; subject to gas fumes
The despot gassed the rebellious tribes - v show off
gas-discharge lamp
- n an electric lamp in which the light comes from an electric discharge between two electrodes in a glass tube
gas-discharge tube
- n a tube in which an electric discharge takes place through a gas
gas bomb
- n a bomb laden with chemical agents that are released when the bomb explodes
gas bracket
- n a pipe with one or more burners projecting from a wall
gas burner
- n burner such that combustible gas issues from a nozzle to form a steady flame
gas chamber
- n instrument of execution consisting of a sealed chamber into which poison gas is introduced; used to kill people or animals