piston ring

noun

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

Examples of piston ring in a Sentence

Recent Examples on the Web
These examples are automatically compiled from online sources to illustrate current usage. Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
According to co-founder and CEO Alec Shkolnik, the design incorporates stationary apex seals that act sort of like piston rings without bouncing around the housing. New Atlas, 24 Sep. 2024 Last month Kia recalled over 147,000 2020 and 2021 Soul and Seltos SUVs due to the piston ring problem. CBS News, 5 May 2021

Word History

First Known Use

1754, in the meaning defined above

Time Traveler
The first known use of piston ring was in 1754

Dictionary Entries Near piston ring

Cite this Entry

“Piston ring.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/piston%20ring. Accessed 16 Nov. 2024.

More from Merriam-Webster on piston ring

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!