compression ratio

noun

Definition of compression ratio

: the ratio of the maximum to the minimum volume of the space enclosed by the piston of an internal-combustion engine during a full stroke

called also compression

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Cite this Entry

“Compression ratio.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/compression%20ratio. Accessed 25 Oct. 2020.

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