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



    BrE BrE//ˈrespəreɪtə(r)//
    ; NAmE NAmE//ˈrespəreɪtər//
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  1. 1a piece of equipment that makes it possible for somebody to breathe over a long period when they are unable to do so naturally She was put on a respirator.
  2. 2a device worn over the nose and mouth to allow somebody to breathe in a place where there is a lot of smoke, gas, etc.
See the Oxford Advanced American Dictionary entry: respirator