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Webster 1913 Edition


Hydraulic

Hy-drau′lic

,
Adj.
[F.
hydraulique
, L.
hydraulicus
, fr. Gr. [GREEK], [GREEK], a water organ;
ὕδωρ
water + [GREEK] flute, pipe. See
Hydra
.]
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
, 2.
Hydraulic brake
,
a cataract. See
Cataract
, 3.
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 under
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
(Gas Works)
,
a horizontal pipe containing water at the bottom into which the ends of the pipes from the retorts dip, for passing the gas through water in order to remove ammonia.
Hydraulic mining
,
a system of mining in which the force of a jet of water is used to wash down a bank of gold-bearing gravel or earth.
[Pacific Coast]
Hydraulic press
,
a hydrostatic press. See under
Hydrostatic
.
Hydraulic propeller
,
a device for propelling ships by means of a stream of water ejected under water rearward from the ship.
Hydraulic ram
,
a machine for raising water by means of the energy of the moving water of which a portion is to be raised. When the rush of water through the main pipe
d
shuts the valve at
a
, the momentum of the current thus suddenly checked forces part of it into the air chamber
b
, and up the pipe
c
, its return being prevented by a valve at the entrance to the air chamber, while the dropping of the valve
a
by its own weight allows another rush through the main pipe, and so on alternately.
Hydraulic valve
.
(Mach.)
(a)
A valve for regulating the distribution of water in the cylinders of hydraulic elevators, cranes, etc.
(b)
(Gas Works)
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.

Webster 1828 Edition


Hydraulic

HYDRAUL'IC


Definition 2024


hydraulic

hydraulic

English

Alternative forms

Adjective

hydraulic (not comparable)

  1. Pertaining to water
    I know not why this entrance is left so neglected, as we are not in want of able engineers in France, in the hydraulic branch, a part of the mathematics to which I have most applyed myself. M. Le Page Du Pratz, History of Louisisana (PG), p. 47
  2. Related to hydraulics

Derived terms

Translations

Verb

hydraulic (third-person singular simple present hydraulics, present participle hydraulicking, simple past and past participle hydraulicked)

  1. (transitive) To mine using the technique of hydraulic mining.