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



    BrE BrE//ˈwɒʃə(r)//
    ; NAmE NAmE//ˈwɑːʃər//
    , NAmE//ˈwɔːʃər//
    How machines work
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  1. 1a small flat ring made of rubber, metal or plastic placed between two surfaces, for example under a nut (2) to make a connection tight See related entries: How machines work
  2. 2(informal) a washing machine see also dishwasher
See the Oxford Advanced American Dictionary entry: washer