Meaning of HYDRAULIC in English

hy ‧ draul ‧ ic /haɪˈdrɒlɪk, -ˈdrɔː- $ -ˈdrɒː-/ BrE AmE adjective [usually before noun]

[ Date: 1600-1700 ; Language: Latin ; Origin: hydraulicus , from Greek , from hydraulis 'organ worked by water' ]

moved or operated by the pressure of water or other liquid:

a hydraulic pump

hydraulic brakes

—hydraulically /-kli/ adverb

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.