- See under two-cycle.
- noting or pertaining to an internal-combustion engine in which two strokes are required to complete a cycle (two-stroke cycle), one to admit and compress air or an air-fuel mixture and one to ignite fuel, do work, and scavenge the cylinder.
Origin of two-cycle
First recorded in 1900–05
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for two-stroke cycle
Some engines are worked on the "two-stroke-cycle" principle; in this case, there are only two strokes for each impulse.The Library of Work and Play: Mechanics, Indoors and Out
Fred T. Hodgson
- US and Canadian relating to or designating an internal-combustion engine whose piston makes two strokes for every explosionAlso called (in Britain and certain other countries): two-stroke See four-stroke