sprocket
noun /ˈsprɒkɪt/
/ˈsprɑːkɪt/
- (also sprocket wheel)a wheel with a row of teeth around the edge that connect with the holes of a bicycle chain or with holes in a film, etc. in order to turn itTopics Engineeringc2
- one of the teeth on such a wheelTopics Engineeringc2
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Word Originmid 16th cent. (denoting a triangular piece of timber used in a roof): of unknown origin.