Hierarchy:
Description:
{{mechanics}} A valve (as in an internal combustion engine) which consists of a sliding shaft with a disk on the end (the disk being shaped to alternately plug and unplug a matching port) and which is operated by springs and possibly cams interacting with the shaft.
Ngram:
Ngram Text:
poppet valve
Source:
Wiktionary
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Wiktionary tag:
Ngram Count:
2