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crankshaft

American  
[krangk-shaft, -shahft] / ˈkræŋkˌʃæft, -ˌʃɑft /

noun

Machinery.

  1. a shaft having one or more cranks, crank, usually formed as integral parts.

crankshaft British  
/ ˈkræŋkˌʃɑːft /

noun

  1. a shaft having one or more cranks, esp the main shaft of an internal-combustion engine to which the connecting rods are attached

"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 crankshaft

First recorded in 1850–55; crank 1 + shaft

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.