HYDAGE
Hyd"age, n. (Law)
Defn: A land tax. See Hidage.
HYDANTOIC
Hy`dan*to"ic, a. (Chem.)
Defn: Pertaining to, or derived from, hydantoin. See Glycoluric.
HYDANTOIN
Hy*dan"to*in, n. Etym: [Hydrogen + allantion.] (Chem.)
Defn: 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. Etym: [Gr. "y`dwr, "y`datos, water: cf. F. hydatide.]
(Zoöl.)
Defn: 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 Coenurus. See these words in the Vocabulary. Hydatid of Morgagni (Anat.), one of the small pedunculated bodies found between the testicle and the head of the epididymis, and supposed to be a remnant of the Müllerian duct.
HYDATIFORM
Hy*dat"i*form, a. Etym: [Hydatid + -form.]
Defn: Resembling a hydatid.