four cycle

four-cycle

[fawr-sahy-kuhl, fohr-]
adjective
noting or pertaining to an internal-combustion engine in which a complete cycle in each cylinder requires four strokes, one to draw in air or an air-fuel mixture, one to compress it, one to ignite it and do work, and one to scavenge the cylinder.
Compare two-cycle.


Origin:
1905–10

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
four-cycle
 
adj
(US), (Canadian) Compare two-stroke Equivalent term (in Britain and certain other countries): four-stroke relating to or designating an internal-combustion engine in which the piston makes four strokes for every explosion

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