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An adjustable split metal ring that fits around a piston and seals the gap between the piston and the cylinder wall.
(Automotive Engineering) 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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a metal ring, split so it can expand, placed around a piston to ensure a tight fit in the cylinder of an engine.
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|Noun||1.||piston ring - seal consisting of a split metal ring that seals the gap between a piston and the cylinder wall|
seal - fastener that provides a tight and perfect closure
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
piston ringn (Aut) → fascia elastica
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995