American English

Definition of backwash noun from the Oxford Advanced American Dictionary

     

    backwash

     noun
    noun
    NAmE//ˈbækwɑʃ//
     
    , NAmE//ˈbækwɔʃ//
     
    [singular]
     
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  1. 1the unpleasant result of an event
  2. 2waves caused by a boat moving through water; the movement of water back into the ocean after a wave has hit the beach
See the Oxford Advanced Learner's Dictionary entry: backwash