ratchetnoun [ C ]
uk/ˈrætʃ.ɪt/us/ˈrætʃ.ɪt/a part of a machine that allows movement in one direction only. It is usually a wheel with teeth-like parts that either slide over or lock against the free end of a bar.
Thesaurus: synonyms and related words
Machines - parts
- ball bearing
- bearing
- clutch
- cog
- cogwheel
- hub
- inlet
- input
- jet
- lever
- manifold
- pivot
- rack and pinion
- ram
- sleeve
- soft key
- stepney
- timer
- vee belt
- wheel
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