English

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

     

    light water

     noun
    noun
    BrE
     
    ; NAmE
     
    [uncountable]
     
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  1. 1 (chemistry) water that contains the normal amount of deuterium compare heavy water
  2. 2(specialist) a type of foam (= mass of bubbles) used to put out fires
See the Oxford Advanced American Dictionary entry: light water