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Definition of Hydraulic
1. Adjective. Moved or operated or effected by liquid (water or oil). "Hydraulic brakes"
2. Adjective. Of or relating to the study of hydraulics. "Hydraulic engineer"
Definition of Hydraulic
1. a. Of or pertaining to hydraulics, or to fluids in motion; conveying, or acting by, water; as, an hydraulic clock, crane, or dock.
Definition of Hydraulic
1. [adj]
Medical Definition of Hydraulic
1. Of or pertaining to hydraulics, or to fluids in motion; conveying, or acting by, water; as, an hydraulic clock, crane, or dock. Hydraulic accumulator, an accumulator for hydraulic machinery of any kind. See Accumulator. Hydraulic brake, a cataract. See Cataract. Hydraulic cement, a cement or mortar made of hydraulic lime, which will harden under water. Hydraulic elevator, a lift operated by the weight or pressure of water. Hydraulic jack. See Jack. Hydraulic lime, quicklime obtained from hydraulic limestone, and used for cementing under water, etc. Hydraulic limestone, a limestone which contains some clay, and which yields a quicklime that will set, or form a firm, strong mass, under water. Hydraulic main An inverted cup with a partition dipping into water, for opening or closing communication between two gas mains, the open ends of which protrude about the water. Origin: F. Hydraulique, L. Hydraulicus, fr. Gr, a water organ; "ydwr water + flute, pipe. See Hydra. Source: Websters Dictionary (01 Mar 1998)