hy‧draul‧ics /haɪˈdrɒlɪks, -ˈdrɔː- $ -ˈdrɒː-/ noun

1. [plural] parts of a machine or system that use the pressure of water or other liquids to move or lift things

2. [uncountable] the study of how to use the pressure of water or other liquids to produce power

[TahlilGaran] Dictionary of Contemporary English ▲