Definition of sprocket noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈsprɒkɪt//
    ; NAmE NAmE//ˈsprɑːkɪt//
    Cycling, How machines work
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  1. 1(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 it See related entries: Cycling, How machines work
  2. 2one of the teeth on such a wheel See related entries: How machines work
  3. Word Originmid 16th cent. (denoting a triangular piece of timber used in a roof): of unknown origin.
See the Oxford Advanced American Dictionary entry: sprocket