Gas engine

1.

(Mach.) A kind of internal-combustion engine (which see) using fixed gas; also, broadly, any internal-combustion engine.

Thesaurus

Noun

1.

gas engine - an internal-combustion engine similar to a gasoline engine but using natural gas instead of gasoline vapor internal-combustion engine, ICE - a heat engine in which combustion occurs inside the engine rather than in a separate furnace; heat expands a gas that either moves a piston or turns a gas turbine