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1. Of, involving, moved by, or operated by a fluid, especially water, under pressure.
2. Able to set and harden under water, as Portland cement.
3. Of or relating to hydraulics.

[Latin hydraulicus, from Greek hudraulikos, from hudraulis, water organ : hudro-, hudr-, hydro- + aulos, pipe, flute.]

hy·drau′li·cal·ly adv.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adv.1.hydraulically - in a hydraulic manner; "the block is then tested hydraulically to its full design test pressure on each stream separately"
meî vökvaafli; vökvafræîilega
hidrolik olarak


(haiˈdroːlik) adjective
1. worked by the pressure of water or some other liquid. hydraulic brakes.
2. relating to hydraulics. a hydraulic engineer.
hyˈdraulically adverb
hyˈdraulics noun singular
the study of the behaviour of moving liquids (eg of water in pipes).
References in periodicals archive ?
At its facility in Cologne, Cyklop GmbH replaced an older-model hydraulically powered backflush screen changer with the recently introduced BKG HiCon V-Type 3G system.
Boxes and other containers are loaded at floor level and hydraulically seated against a discharge hood.
All four discharge conveyors hydraulically fold for transport.
The NT8000i is a closed-loop rate control system for hydraulically driven apron and floor systems on manure, lime, and fertilizer spreaders that provides precision guidance and prescription-based control of the spreading rate.
The pushing, pulling and lifting is hydraulically activated with ample force to do the job.
As of July 1, oil and natural gas companies must disclose the chemicals used when hydraulically fracturing rock to extract oil and gas .
The TracStar 630 will butt fuse 8"-24" pipe and fittings and is hydraulically powered to assist all fusion functions including the operation of the jaws, pipe lifts, heater and facer.
We anticipated demand for an alternative to traditional, hydraulically actuated braking and began the pursuit of electronically actuated braking more than a decade ago," Goodrich Airframe Systems Segment President Jack Carmola said.
The doors are opened, and the tilter hydraulically raises the container from zero to 90 degrees for loading with a material handler, conveyor or wheel loader.
Other options include hydraulically operated side plates, upper conveyor cover, an auxiliary rotor drive and a high pressure washdown system.
The steering wheel could be hooked up hydraulically to steer the front wheels.