Definition of white water noun from the Oxford Advanced Learner's Dictionary

     

    white water

     noun
    noun
    BrE
     
    ; NAmE
     
    [uncountable]
     
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  1. 1a part of a river that looks white because the water is moving very fast over rocks a stretch of white water white-water rafting
  2. 2a part of the sea or ocean that looks white because it is very rough and the waves are high