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piston rod

American  

noun

  1. a rod communicating the rectilinear motion of a piston to the small end of a connecting rod or elsewhere.

piston rod British  

noun

  1. the rod that connects the piston of a reciprocating steam engine to the crosshead

  2. a less common name for a connecting rod

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of piston rod

First recorded in 1780–90

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.