- The definition of hydraulic is operated by the moving force of a liquid.
An example of a hydraulic machine is one that is powered by water.
hydraulic definition by Webster's New World
- of hydraulics
- operated by the movement and force of liquid; specif., operated by the pressure created when a liquid is forced through an aperture, tube, etc.: hydraulic brakes
- setting or hardening under water: hydraulic mortar
Origin: French hydraulique ; from Classical Latin hydraulicus ; from Classical Greek hydraulikos, of a water organ ; from hydraulis, water organ ; from hydōr, water plush aulos, tube, pipe ; from Indo-European base an unverified form aulos from source (with metathesis) Classical Latin alvus, the belly
- hydraulically adverb
hydraulic definition by American Heritage Dictionary
- Of, involving, moved by, or operated by a fluid, especially water, under pressure.
- Able to set and harden under water, as Portland cement.
- Of or relating to hydraulics.
Origin: Latin hydraulicus, from Greek hudraulikos, from hudraulis, water organ : hudro-, hudr-, hydro- + aulos, pipe, flute.
- hy·drauˈli·cal·ly adverb
hydraulic - Cultural Definition
A descriptive term for a system operated or moved by a fluid. The hydraulic jack, in which force is transmitted from a handle by means of a heavy oil, is probably the most familiar hydraulic device.
hydraulic - Science Definition
- Operated by the pressure of water or other liquids. Hydraulic systems, such as hydraulic brakes, allow mechanical force to be transferred along curved paths (through pipes or tubes) that would be difficult for solid mechanisms, such as levers or cables, to negotiate efficiently.
- Relating to hydraulics.
- Capable of hardening under water, as cement.