Definition of rotary adjective from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈrəʊtəri//
    ; NAmE NAmE//ˈroʊtəri//
    [only before noun]
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  1. 1(of a movement) moving in a circle around a central fixed point rotary motion
  2. 2(of a machine or piece of equipment) having parts that move in this way a rotary engine
  3. Word Originmid 18th cent.: from medieval Latin rotarius, from rota ‘wheel’.
See the Oxford Advanced American Dictionary entry: rotary