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Definition of hydraulics noun from the Oxford Advanced American Dictionary

     

    hydraulics

     noun
    noun
    NAmE//haɪˈdrɔlɪks//
     
     
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  1. 1[plural] machinery that works by the use of liquid moving under pressure
  2. 2[uncountable] the science of the use of liquids moving under pressure
See the Oxford Advanced Learner's Dictionary entry: hydraulics