hy·drate /ˈhaɪˌdret/ 名詞
Hy·drate v. t. [imp. & p. p. Hydrated p. pr. & vb. n. Hydrating ] To form into a hydrate; to combine with water.
Hy·drate n. 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.
n : any compound that contains water of crystallization
v 1: supply water or liquid to in order to maintain a healthy
balance; "the bicyclists must be hydrated frequently"
2: become hydrated and combine with water
3: cause to be hydrated; add water or moisture to; "hydrate
your skin" [ant: dehydrate]