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wrist pin

noun, Machinery
a pin joining the end of a connecting rod to a trunk piston or the end of a piston rod.
Origin of wrist pin
1870-75 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for wrist-pin
Historical Examples
  • This test may be made with the wrist-pin alone, or if the piston is in place, a straight edge or spirit level may be employed.

    Aviation Engines Victor Wilfred Pag
  • The wear at the wrist-pin is taken by the so called brasses, shown at B in the illustrations.

    Steam Engines Anonymous
  • The outer brass is adjustable, being forced toward the wrist-pin by a sliding wedge which is operated by one or more set-screws.

    Steam Engines Anonymous
British Dictionary definitions for wrist-pin

wrist pin

a cylindrical boss or pin attached to the side of a wheel parallel with the axis, esp one forming a bearing for a crank
(US & Canadian) the pin through the skirt of a piston in an internal-combustion engine, to which the little end of the connecting rod is attached Also called (esp in Britain) gudgeon pin
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
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