(not in technical use) a gearwheel, especially one having teeth of hardwood or metal inserted into slots.
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How to use cogwheel in a sentence
When he crawled out, with a greasy cogwheel in his hand, he was soaked with perspiration and his overalls were stained by oil.The Girl From Keller's | Harold Bindloss
Between the rails runs a third broad and massive rail provided with teeth, which gear with a cogwheel under the locomotive.
Remove washer on the short end of shaft, also the cogwheel if the shaft has cogs on both ends.Burroughs' Encyclopaedia of Astounding Facts and Useful Information, 1889 | Barkham Burroughs
They have very powerful engines and a cogwheel arrangement, the line making a zigzag up the mountain-side.Round About the Carpathians | Andrew F. Crosse
There was a grinding crash, and a large cogwheel tore its way through the roof.The Escape of a Princess Pat | George Pearson
British Dictionary definitions for cogwheel
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