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cam engine

noun
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Definition of cam engine

: an engine in which the reciprocating motion of the piston is converted into rotary motion by means of a cam and roller instead of the more usual crank

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History and Etymology for cam engine

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“Cam engine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cam%20engine. Accessed 30 May. 2020.

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