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



    BrE BrE//dɪˈfjuːzə(r)//
    ; NAmE NAmE//dɪˈfjuːzər//
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  1. 1a device used in photography to avoid dark shadows or areas which are too bright
  2. 2a part that is attached to a hairdryer to spread the hot air around the head and dry the hair more gently
See the Oxford Advanced American Dictionary entry: diffuser