Piston Ring (noun) Definition, Meaning & Examples

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noun
  1. a metallic ring, usually one of a series, and split so as to be expansible, placed around a piston in order to maintain a tight fit, as inside the cylinder of an engine.
noun
  1. a split ring, usually made of cast iron, that fits into a groove on the rim of a piston to provide a spring-loaded seal against the cylinder wall
Piston Ring (noun) Definition, Meaning & Examples

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