Definition of piston ring in English:

piston ring

Line breaks: pis¦ton ring

noun

  • A ring on a piston sealing the gap between the piston and the cylinder wall.
    More example sentences
    • Random leak testing is also recommended because any cylinder leakage indicates a bent valve or a faulty piston ring.
    • The downside is that tiny amounts of oil can force their way up past the piston ring into the combustion chamber.
    • Something was broken and Bill and I suspected he'd blown a piston ring.

More definitions of piston ring

Definition of piston ring in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day skosh
Pronunciation: skəʊʃ
noun
a small amount; a little