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Definition of cogwheel
cogwheel
/ˈkɑːɡˌwiːl/
cog · wheel
Plural:cogwheels
cogwheel Lexical Profile
CEFR
B2
Grade
7
Tier
2
Usage
Rare
Syllables
2
cogwheel Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
A wheel with a series of projections or teeth around its rim that mesh with those of another wheel or shaft in order to transmit or receive motion.
Example
"The watchmaker carefully replaced the tiny brass cogwheel inside the antique clock."
Synonyms
View all synonyms for cogwheel• Nearby Words
Word Origin & Etymology
Formed in Middle English as a compound of 'cog' (of Scandinavian origin, meaning a tooth on a wooden wheel) and 'wheel' (from Old English 'hweol').
Cite this Entry
Wordmom. (2026). Definition of Cogwheel. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/cogwheel