noun

cogwheel

cogwheel, cog

The old clock has many small cogwheels.

The old clock has many small cogwheels.

((a/the)) cogwheel a wheel with teeth on its edge The old clock has many small cogwheels.

Synonyms: gear, sprocket

From 'cog' (a tooth on a wheel) and 'wheel'. Literally a wheel with cogs.

Picture a wheel with teeth (cogs) that fits into another to make a machine work. It's a 'cogged wheel'.

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