Webster's Dictionary 1913

3862

Hydrothorax

Hy′dro‐tho″rax (?), n. [Hydro-, 1 + thorax.] (Med.) An accumulation of serous fluid in the cavity of the chest.

3863

Hydrotic

Hy‐drot″ic (?), a. [Gr. ὕδωρ water: cf. Gr. � moisture, F. hydrotique.] Causing a discharge of water or phlegm. — n.(Med.) A hydrotic medicine.

3864

Hydrotical

Hy‐drot″ic‐al (?), a. Hydrotic.

3865

Hydrotrope

Hy″dro‐trope (?), n. [Hydro-, 1 + Gr. � to turn, direct.] A device for raising water by the direct action of steam; a pulsometer.

3866

Hydrotropic

Hy′dro‐trop″ic (?), a. [See Hydrotrope.] (Bot.) Turning or bending towards moisture, as roots.

3867

Hydrotropism

Hy‐drot″ro‐pism (?), n.(Bot.) A tendency towards moisture.

3868

Hydrotropism (2)

Hy‐drot″ro‐pism, n.(Bot.) In a broader sense, any curvature or turning induced in certain growing plant organs under the influence of moisture.☞ When the movement is toward the ...

3869

Hydrous

Hy″drous (?), a. [Gr. ὕδωρ water.] 1. Containing water; watery.2. (Chem.) Containing water of hydration or crystallization.

3870

Hydroxanthane

Hy′dro‐xan″thane (?), n.(Chem.) A persulphocyanate.

3871

Hydroxanthic

Hy′dro‐xan″thic (?), a. [Hydro-, 2 + xanthic.] (Chem.) Persulphocyanic.

3872

Hydroxide

Hy‐drox″ide (?), n. [Hydro-, 2 + oxide.] (Chem.) A hydrate; a substance containing hydrogen and oxygen, made by combining water with an oxide, and yielding water by elimination....

3873

Hydroxy-

Hy‐drox″y– (?). (Chem.) A combining form, also used adjectively, indicating hydroxyl as an ingredient.Hydroxy acid(Chem.), an organic acid, having (besides the hydroxyl group of...

3874

Hydroxyl

Hy‐drox″yl (?), n. [Hydro-, 2 + oxygen + -yl.] (Chem.) A compound radical, or unsaturated group, HO, consisting of one atom of hydrogen and one of oxygen. It is a characteristic...

3875

Hydroxylamine

Hy‐drox′yl‐am″ine (?), n. [Hydroxyl + amine.] (Chem.) A nitrogenous, organic base, NH2.OH, resembling ammonia, and produced by a modified reduction of nitric acid. It is usually...

3876

Hydrozoa

‖Hy′dro‐zo″a (?), n. pl. [NL., fr. E. hydra + Gr. ζο̑ͅον an animal.] (Zoöl.) The Acalephæ; one of the classes of cœlenterates, including the Hydroidea, Discophora, and Siphonoph...

3877

Hydrozoal

Hy′dro‐zo″al (?), a.(Zoöl.) Of or pertaining to the Hydrozoa.

3878

Hydrozoön

‖Hy′dro‐zo″ön (?), n.; pl. L. Hydrozoa (#), E. Hydrozoöns (#). (Zoöl.) One of the Hydrozoa.

3879

Hydruret

Hy″dru‐ret (?), n. [Hydro-, 2] (Chem.) A binary compound of hydrogen; a hydride.

3880

Hydrus

‖Hy″drus (?), n. [L., a water serpent; also, a certain constellation, Gr. ὕδροσ.] (Astron.) A constellation of the southern hemisphere, near the south pole.

3881

Hye

Hye (?), n. & v. See Hie. Chaucer.

3882

Hyemal

Hy‐e″mal (?), a. [L. hyemalis, or better hiemalis, fr. hyems, hiems, winter: cf. F. hyémal.] Belonging to winter; done in winter. Sir T. Browne.

3883

Hyemate

Hy″e‐mate (?), v. i. [L. hiemare, hiematum. See Hyemal.] To pass the winter.

3884

Hyemation

Hy′e‐ma″tion (?), n. [L. hiematio.] 1. The passing of a winter in a particular place; a wintering.2. The act of affording shelter in winter.

3885

Hyen

Hy″en (?), n. [F. hyène.] A hyena. Shak.

3886

Hyena

Hy‐e″na (?), n.; pl.Hyenas (#). [L. hyaena, Gr. �, orig., a sow, but usually, a Libyan wild beast, prob., the hyena, fr. � hog: cf. F. hyène. See Sow female hog.] (Zoöl.) Any ca...

3887

Hyetal

Hy″e‐tal (?), a. Of or pertaining to rain; descriptive of the distribution of rain, or of rainy regions.

3888

Hyetograph

Hy″e‐to‐graph (?), n. [Gr. � rain + -graph.] A chart or graphic representation of the average distribution of rain over the surface of the earth.