outstroke

American

[aut-strohk] / ˈaʊtˌstroʊk /

noun

a stroke in an outward direction.
(in an engine) the stroke during which the piston rod moves outward from the cylinder.

Etymology

Origin of outstroke

First recorded in 1850–55; out- + stroke ¹

Example Sentences

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outstroke

Its cycle is: First outstroke, gas and air sucked into the cylinder; first instroke, gas and air compressed into space; second outstroke, impulse due to ignition; second instroke, discharge of exhausted gases.

From Scientific American Supplement, No. 484, April 11, 1885 by Various

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023