Definition of four-stroke adjective from the Oxford Advanced Learner's Dictionary

 

four-stroke

 adjective
adjective
BrE
 
; NAmE
 
(specialist) Parts of a car
 
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(of an engine or vehicle) with a piston that makes four up and down movements in each power cycle compare two-stroke See related entries: Parts of a car
See the Oxford Advanced American Dictionary entry: four-stroke