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cogwheel

American  
[kog-hweel, -weel] / ˈkɒgˌʰwil, -ˌwil /

noun

  1. (not in technical use) a gearwheel, especially one having teeth of hardwood or metal inserted into slots.

cogwheel British  
/ ˈkɒɡˌwiːl /

noun

  1. another name for gearwheel

"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 cogwheel

late Middle English word dating back to 1375–1425; cog 1, wheel

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.