PCV valve

noun

¦pē(ˌ)sēˈvē-
: an automotive-emission control valve that recirculates gases (as from blow-by) through the combustion chambers to permit more complete combustion

Word History

Etymology

positive crankcase ventilation

First Known Use

1965, in the meaning defined above

Time Traveler
The first known use of PCV valve was in 1965

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Dictionary Entries Near PCV valve

pct

PCV valve

pd

See More Nearby Entries 

Cite this Entry

“PCV valve.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/PCV%20valve. Accessed 1 Dec. 2024.

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