sprocket
nounUK /ˈsprɒk.ɪt/
US /ˈsprɑː.kɪt/
A wheel with teeth that turns a chain, like on a bike.
The chain slipped off the sprocket, so the bike wouldn't move.
SYNONYMS
RELATED WORDS
OTHER MEANINGS
2. A small projection or tooth on a wheel that fits into a chain.
One sprocket on the wheel was bent and made a clicking sound.
3. A toothed wheel that engages with another part to transmit motion in a machine.
The engineer replaced the worn sprocket in the conveyor system.
4. In film projection, a toothed wheel that feeds the film through the projector.
The projector's sprocket pulled the film smoothly past the lens.