Hydrostatics
(Hy`dro*stat"ics) n. [Cf. F. hydrostatique.] (Physics) The branch of science which relates
to the pressure and equilibrium of nonelastic fluids, as water, mercury, etc.; the principles of statics applied
to water and other liquids.
Hydrosulphate
(Hy`dro*sul"phate) n. (Chem.) Same as Hydrosulphurent.
Hydrosulphide
(Hy`dro*sul"phide) n. (Chem.) One of a series of compounds, derived from hydrogen
sulphide by the replacement of half its hydrogen by a base or basic radical; as, potassium hydrosulphide,
KSH. The hydrosulphides are analogous to the hydrates and include the mercaptans.
Hydrosulphite
(Hy`dro*sul"phite) n. (Chem.) A saline compound of hydrosulphurous acid and a base.
[R.]
Hydrosulphuret
(Hy`dro*sul"phu*ret) n. (Chem.) A hydrosulphide. [Archaic]
Hydrosulphureted
(Hy`dro*sul"phu*ret`ed) a. (Chem.) Combined with hydrogen sulphide.
Hydrosulphuric
(Hy`dro*sul*phu"ric) a. [Hydro- , 2 + sulphuric.] (Chem.) Pertaining to, or derived
from, hydrogen and sulphur; as, hydrosulphuric acid, a designation applied to the solution of hydrogen
sulphide in water.
Hydrosulphurous
(Hy`dro*sul"phur*ous) a. (Chem.) Pertaining to, or designating, an acid obtained by
the reduction of sulphurous acid. See Hyposulphurous acid, under Hyposulphurous.
Hydrotellurate
(Hy`dro*tel"lu*rate) n. (Chem.) A salt formed by the union of hydrotelluric acid and the
base.
Hydrotelluric
(Hy`dro*tel*lu"ric) a. [Hydro- , 2 + telluric.] (Chem.) Formed by hydrogen and tellurium; as,
hydrotelluric acid, or hydrogen telluride.
Hydrotheca
(||Hy`dro*the"ca) n.; pl. L. Hydrothecæ E. Hydrothecas [NL., fr. E. hydra + Gr. a box.]
(Zoöl.) One of the calicles which, in some Hydroidea protect the hydrants. See Illust. of Hydroidea, and
Campanularian.
Hydrotherapy
(Hy`dro*ther"a*py) n. [Hydro- , 1 + therapy.] (Med.) See Hydropathy.
Hydrothermal
(Hy`dro*ther"mal) a. [Hydro-, 1 + thermal.] Of or pertaining to hot water; — used esp.
with reference to the action of heated waters in dissolving, redepositing, and otherwise producing mineral
changes within the crust of the globe.
Hydrothorax
(Hy`dro*tho"rax) n. [Hydro-, 1 + thorax.] (Med.) An accumulation of serous fluid in the
cavity of the chest.
Hydrotic
(Hy*drot"ic) a. [Gr. "y`dwr water: cf. Gr. moisture, F. hydrotique.] Causing a discharge of
water or phlegm. — n. (Med.) A hydrotic medicine.
Hydrotical
(Hy*drot"ic*al) a. Hydrotic.
Hydrotrope
(Hy"dro*trope) n. [Hydro-, 1 + Gr. to turn, direct.] A device for raising water by the direct
action of steam; a pulsometer.
Hydrotropic
(Hy`dro*trop"ic) a. [See Hydrotrope.] (Bot.) Turning or bending towards moisture, as
roots.
Hydrotropism
(Hy*drot"ro*pism) n. (Bot.) A tendency towards moisture.
