Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

piston ring

noun

Definition of piston ring

  1. :  a springy split metal ring for sealing the gap between a piston and the cylinder wall



1867

First Known Use of piston ring

1867


Learn More about piston ring


Seen and Heard

What made you want to look up piston ring? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

tending to dismiss important matters

Get Word of the Day daily email!