- 1(of water, oil, etc.) moved through pipes, etc. under pressure hydraulic fluid
- 2(of a piece of machinery) operated by liquid moving under pressure hydraulic brakes
- 3connected with hydraulic systems hydraulic engineering
NAmE//haɪˈdrɔlɪkli//
adverb hydraulically operated doorsSee hydraulic in the Oxford Advanced Learner's DictionaryCheck pronunciation: hydraulic