Definition of hydraulic adjective from the Oxford Advanced Learner's Dictionary



    BrE BrE//haɪˈdrɔːlɪk//
    , also BrE//haɪˈdrɒlɪk//
    ; NAmE NAmE//haɪˈdrɔːlɪk//
    [usually before noun]
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  1. 1(of water, oil, etc.) moved through pipes, etc. under pressure hydraulic fluid
  2. 2(of a piece of machinery) operated by liquid moving under pressure hydraulic brakes
  3. 3connected with hydraulic systems hydraulic engineering
  4. Word Originearly 17th cent.: via Latin from Greek hudraulikos, from hudro- ‘water’ + aulos ‘pipe’.
See the Oxford Advanced American Dictionary entry: hydraulic

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