Hy"drate (?), n. [Gr. "y`dwr water: cf. F. hydrate.] Chem. (a)
A compound formed by the union of water with some other substance, generally forming a neutral body, as certain crystallized salts.
(b)
A substance which does not contain water as such, but has its constituents (hydrogen, oxygen, hydroxyl) so arranged that water may be eliminated; hence, a derivative of, or compound with, hydroxyl; hydroxide; as, ethyl hydrate, or common alcohol; calcium hydrate, or slaked lime.
© Webster 1913.
Hy"drate (?), v. t. [imp. & p. p. Hydrated (?); p. pr. & vb. n. Hydrating (?).]
To form into a hydrate; to combine with water.
© Webster 1913.