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Longman Dictionary of Contemporary English
hydraulics
noun
EXAMPLES FROM OTHER ENTRIES
▪ A U-shaped cover enclosed the transmission and hydraulics under the mast.
EXAMPLES FROM CORPUS
▪ After several normal circuits we sampled the failure cases, starting with the simple loss of hydraulics.
▪ Controlled by computer and battery-powered hydraulics, they push or pull like pistons to damp movement by the walls.
▪ Gear, flaps and airbrakes are all normally moved by the 250 bar hydraulics, but the flaps have no standby system.
▪ He studied the hydraulics of the cataract and the sculptural look of the cliffs.
▪ The curriculum expands to include hydraulics, basic pneumatics, electronics, and statistical process control.
▪ The system is not expected to leak while the craft is in orbit and the hydraulics are not in use.
▪ We run hydraulics, electricals, environmental systems, in addition to the loading and the weight and balance duties.
The Collaborative International Dictionary
hydraulics

Mechanics \Me*chan"ics\, n. [Cf. F. m['e]canique.] That science, or branch of applied mathematics, which treats of the action of forces on bodies.

Note: That part of mechanics which considers the action of forces in producing rest or equilibrium is called statics; that which relates to such action in producing motion is called dynamics. The term mechanics includes the action of forces on all bodies, whether solid, liquid, or gaseous. It is sometimes, however, and formerly was often, used distinctively of solid bodies only: The mechanics of liquid bodies is called also hydrostatics, or hydrodynamics, according as the laws of rest or of motion are considered. The mechanics of gaseous bodies is called also pneumatics. The mechanics of fluids in motion, with special reference to the methods of obtaining from them useful results, constitutes hydraulics.

Animal mechanics (Physiol.), that portion of physiology which has for its object the investigation of the laws of equilibrium and motion in the animal body. The most important mechanical principle is that of the lever, the bones forming the arms of the levers, the contractile muscles the power, the joints the fulcra or points of support, while the weight of the body or of the individual limbs constitutes the weight or resistance.

Applied mechanics, the principles of abstract mechanics applied to human art; also, the practical application of the laws of matter and motion to the construction of machines and structures of all kinds.

orbital mechanics, the principles governing the motion of bodies in orbit around other bodies under gravitational influence, such as artificial Earth satellites.

Douglas Harper's Etymology Dictionary
hydraulics

1670s, from hydraulic; also see -ics.

Wiktionary
hydraulics

n. 1 The engineering science that deals with practical applications where liquid is in motion and transmits energy. 2 The hydraulic system of a vehicle or other machine.

WordNet
hydraulics

n. study of the mechanics of fluids [syn: fluid mechanics]

Wikipedia
Hydraulics

Hydraulics is a topic in applied science and engineering dealing with the mechanical properties of liquids or fluids. At a very basic level, hydraulics is the liquid version of pneumatics. Fluid mechanics provides the theoretical foundation for hydraulics, which focuses on the engineering uses of fluid properties. In fluid power, hydraulics are used for the generation, control, and transmission of power by the use of pressurized liquids. Hydraulic topics range through some part of science and most of engineering modules, and cover concepts such as pipe flow, dam design, fluidics and fluid control circuitry, pumps, turbines, hydropower, computational fluid dynamics, flow measurement, river channel behaviour and erosion.

Free surface hydraulics is the branch of hydraulics dealing with free surface flow, such as occurring in rivers, canals, lakes, estuaries and seas. Its sub-field open channel flow studies the flow in open channels.

The word "hydraulics" originates from the Greek word (hydraulikos) which in turn originates from (hydor, Greek for water) and (aulos, meaning pipe).

Usage examples of "hydraulics".

Gator stood by the half-visible airman, talking to her as she rummaged around in the guts of the hydraulics system, electrical lines, and avionics that controlled the Tomcat.

Thank God the king did not trouble to test my knowledge of the science of hydraulics, with which I was totally unacquainted.

Fergusson insisted that they obtain a pachyderm specimen so that he could perform meticulous physiognomic measurements on the size and thickness of the ears, the biological hydraulics of the trunk, and the protective qualities of the hide.

Using the surviving turbofan and the little that remained of hydraulics, Lancaster pulled out of the spin and managed to level off just as a Mig-29 rolled behind him.

He knew who he wanted, too: a tall fair man called Baffin, who had studied hydraulics and hydrodynamics and ought in any case to get another look at the river.

I suppose he was going to study hydrostatics, and he found himself under the necessity of practising hydraulics.

On his other flank it was dwarfed by a set of pistons and hydraulics strung together into the skeleton of a tripedal dinosaur, tailless, but sprouting five hydraheads, each mounted with a different type of geological drill.

What other creature has thus merged the aestheticism of mechanics and hydraulics?

Balthasar, with all his hydraulics running, ought to be able to fix on the Russian gunner first, if Luis could keep everyone calm.

Two hundred feet aft the huge control surfaces, driven by high-pressure hydraulics, went to the dive position, forcing the submarine to a down angle.

But it is the metaphors of Cartesian clockwork and hydraulics rather than Cartesian dualism which concern me at present.

I could not say that he was mistaken, for fear of offending him, so I simply bent my head, which might mean either yes or no. Thank God the king did not trouble to test my knowledge of the science of hydraulics, with which I was totally unacquainted.

Outside a bodega I saw a lowrider car, three vatos gathered around it as the driver worked his hydraulics to make the left side rock and roll.

The hydraulics barely started to groan, but that instant of anticipation broke the seals before the impact could twist hatches and coamings together immovably.

But Beaman, aided by damned near every hydraulics tech onboard the carrier, refused to give up.