cogwheel

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

noun

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

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Origin of cogwheel

late Middle English word dating back to 1375–1425; see origin at cog1, wheel
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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British Dictionary definitions for cogwheel

cogwheel
/ (ˈkɒɡˌwiːl) /

noun

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