Hyalospongia
(||Hy`a*lo*spon"gi*a) n. pl. [NL., fr. Gr. "y`alos glass + a sponge.] (Zoöl.) An order of
vitreous sponges, having glassy six-rayed, siliceous spicules; — called also Hexactinellinæ.
Hyalotype
(Hy*al"o*type) n. [Gr. "y`alos glass + -type.] A photographic picture copied from the negative
on glass; a photographic transparency. R. Hunt.
Hybernacle
(Hy*ber"na*cle Hy"ber*nate) Hybernation
(Hy`ber*na"tion) See Hibernacle, Hibernate,
Hibernation.
Hyblæan
(Hy*blæ"an) a. [L. Hyblaeus.] Pertaining to Hybla, an ancient town of Sicily, famous for its bees.
Hybodont
(Hyb"o*dont) a. [Gr. hump + a tooth.] (Paleon.) Of, pertaining to, or resembling, an extinct
genus of sharks especially in the form of the teeth, which consist of a principal median cone with smaller
lateral ones.
Hybodus
(||Hyb"o*dus) n. [NL. See Hybodont.] (Paleon.) An extinct genus of sharks having conical,
compressed teeth.
Hybrid
(Hy"brid) n. [L. hybrida, hibrida, prob. allied to Gr. wantonness (as if unbridled, lawless, unnatural),
perh. akin to Gr. "ype`r over, E. over: cf. F. hybride.] (Biol.) The offspring of the union of two distinct
species; an animal or plant produced from the mixture of two species. See Mongrel.
Hybrid
(Hy"brid), a. Produced from the mixture of two species; as, plants of hybrid nature.
Hybridism
(Hy"brid*ism) n. The state or quality of being hybrid.
Hybridist
(Hy"brid*ist), n. One who hybridizes.
Hybridity
(Hy*brid"i*ty) n. Hybridism.
Hybridizable
(Hy"brid*i`za*ble) a. Capable of forming a hybrid, or of being subjected to a hybridizing
process; capable of producing a hybrid by union with another species or stock.
Hybridizable genera are rarer than is generally supposed, even in gardens where they are so often operated
upon, under circumstances most favorable to the production of hybrids.
J. D. Hooker. Hybridization
(Hy`brid*i*za"tion) n. The act of hybridizing, or the state of being hybridized.
Hybridize
(Hy"brid*i`ze) v. t. [imp. & p. p. Hybridized ; p. pr. & vb. n. Hybridizing ] To render hybrid; to
produce by mixture of stocks.
Hybridizer
(Hy"brid*i`zer) n. One who hybridizes.
Hybridous
(Hy"brid*ous) a. Same as Hybrid.
Hydage
(Hyd"age) n. (Law) A land tax. See Hidage.
Hydantoic
(Hy`dan*to"ic) a. (Chem.) Pertaining to, or derived from, hydantoin. See Glycoluric.
Hydantoin
(Hy*dan"to*in) n. [Hydrogen + allantion.] (Chem.) A derivative of urea, C3H4N2O2, obtained
from allantion, as a white, crystalline substance, with a sweetish taste; — called also glycolyl urea.
Hydatid
(Hy"da*tid) n. [Gr. a watery vesicle under the upper eyelid, fr. "y`dwr, "y`datos, water: cf. F.
hydatide.] (Zoöl.) A membranous sac or bladder filled with a pellucid fluid, found in various parts of the
bodies of animals, but unconnected with the tissues. It is usually formed by parasitic worms, esp. by
larval tapeworms, as Echinococcus and Cœnurus. See these words in the Vocabulary.
