| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024hy•drate (hī′drāt),USA pronunciation n., v., -drat•ed, -drat•ing. n. - Chemistryany of a class of compounds containing chemically combined water. In the case of some hydrates, as washing soda, Na2CO3·10H2O, the water is loosely held and is easily lost on heating;
in others, as sulfuric acid, SO3·H2O, or H2SO4, it is strongly held as water of constitution.
v.t., v.i. - Chemistryto combine chemically with water.
hy•dra′tion, n. Collins Concise English Dictionary © HarperCollins Publishers:: hydrate /ˈhaɪdreɪt/ n - a chemical compound containing water that is chemically combined with a substance and can usually be expelled without changing the constitution of the substance
- (not in technical usage) a chemical compound, such as a carbohydrate, that contains hydrogen and oxygen atoms in the ratio two to one
vb - to undergo or cause to undergo treatment or impregnation with water
Etymology: 19th Century: from hydro- + -ate1hyˈdration n ˈhydrator n |