(Hy`dro*mag"ne*site) n. [Hydro-, 1 + magnesite.] (Min.) A hydrous carbonate of
magnesia occurring in white, earthy, amorphous masses.
(Hy"dro*man`cy) n. [Hydro-, 1 + -mancy: cf. F. hydromancie.] Divination by means of
water, practiced by the ancients.
(Hy`dro*man"tic) a. [Cf. F. hydromantique.] Of or pertaining to divination by water.
(Hy`dro*me*chan"ics) n. [Hydro- , 1 + mechanics.] That branch of physics which
treats of the mechanics of liquids, or of their laws of equilibrium and of motion.
(||Hy`dro*me*du"sa) n.; pl. Hydromedusæ [NL. See Hydra, and Medusa.] (Zoöl.) Any
medusa or jellyfish which is produced by budding from a hydroid. They are called also Craspedota, and
Such medusæ are the reproductive zooids or gonophores, either male or female, of the hydroid from which
they arise, whether they become free or remain attached to the hydroid colony. They in turn produce the
eggs from which the hydroids are developed. The name is also applied to other similar medusæ which
are not known to bud from a hydroid colony, and even to some which are known to develop directly from
the eggs, but which in structure agree essentially with those produced from hydroids. See Hydroidea,
(Hy"dro*mel) n. [L. hydromel, hydromeli, Gr. water + honey: cf. F. hydromel.] A liquor
consisting of honey diluted in water, and after fermentation called mead.
(Hy`dro*mel*lon"ic) a. See Cyamellone.
(Hy`dro*met`al*lur"gic*al) a. Of or pertaining to hydrometallurgy; involving the use of
liquid reagents in the treatment or reduction of ores. Hy`dro*met`al*lur"gic*al*ly, adv.
(Hy`dro*met"al*lur`gy) n. [Hydro- , 1 + metallurgy.] The art or process of assaying
or reducing ores by means of liquid reagents.
(Hy`dro*me"te*or) n. [Hydro-, 1 + meteor.] A meteor or atmospheric phenomenon dependent
upon the vapor of water; in the pl., a general term for the whole aqueous phenomena of the atmosphere,
as rain, snow, hail, etc. Nichol.