Search Result：four-stroke engine
four-stroke engine 
(TTS Sound)
(TTS Sound)Overview of noun four-stroke_engine
The noun four-stroke engine has 1 sense
- 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)