Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun four-stroke_engine

1 sense of four-stroke engine

Sense 1
four-stroke engine, four-stroke internal-combustion engine -- (an internal-combustion engine in which an explosive mixture is drawn into the cylinder on the first stroke and is compressed and ignited on the second stroke; work is done on the third stroke and the products of combustion are exhausted on the fourth stroke)
       => 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)