Definition of sprocket noun from the Oxford Advanced American Dictionary

     

    sprocket

     noun
    noun
    NAmE//ˈsprɑkət//
     
     
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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
  2. 2 one of the teeth on such a wheel
See the Oxford Advanced Learner's Dictionary entry: sprocket