antiknock

adjective
an·​ti·​knock | \ ˌan-tē-ˈnäk How to pronounce antiknock (audio) , ˌan-tī- \
variants: or anti-knock

Definition of antiknock

: serving or intended to prevent detonation in the combustion process of an internal-combustion engine an antiknock agent an anti-knock fuel additive

First Known Use of antiknock

1921, in the meaning defined above

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The first known use of antiknock was in 1921

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Cite this Entry

“Antiknock.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antiknock. Accessed 27 Nov. 2020.

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