four-stroke

[fawr-strohk, fohr-]

adjective

Machinery.

1. four-cycle.

four-stroke

adjective

1. US and Canadian name: four-cycle. relating to or designating an internal-combustion engine in which the piston makes four strokes for every explosion Compare two-stroke

Word History and Origins

Origin of four-stroke¹

First recorded in 1895–1900