Defn: A salt formed by the union of hydrotelluric acid and the base.

HYDROTELLURIC
Hy`dro*tel*lu"ric, a. Etym: [Hydro-, 2 + telluric.] (Chem.)

Defn: Formed by hydrogen and tellurium; as, hydrotelluric acid, or hydrogen telluride.

HYDROTHECA
Hy`dro*the"ca, n.; pl. L. Hydrothecæ, E. Hydrothecas. Etym: [NL., fr.
E. hydra + Gr. (Zoöl.)

Defn: One of the calicles which, in some Hydroidea (Thecaphora), protect the hydrants. See Illust. of Hydroidea, and Campanularian.

HYDROTHERAPEUTICS
Hy`dro*ther`a*peu"tics, n. [Hydro-, 1 + therapeutics.] (Med.)

Defn: A system of treating disease by baths and mineral waters.

HYDROTHERAPY
Hy`dro*ther"a*py, n. Etym: [Hydro-, 1 + therapy.] (Med.)

Defn: See Hydropathy.

HYDROTHERMAL
Hy`dro*ther"mal, a. Etym: [Hydro-, 1 + thermal.]