|1.||a chemical compound containing water that is chemically combined with a substance and can usually be expelled without changing the constitution of the substance|
|2.||a chemical compound that can dissociate reversibly into water and another compound. For example sulphuric acid (H2SO4) dissociates into sulphur trioxide (SO3) and water (H2O)|
|3.||(not in technical usage) a chemical compound, such as a carbohydrate, that contains hydrogen and oxygen atoms in the ratio two to one|
|4.||to undergo or cause to undergo treatment or impregnation with water|
|[C19: from |
|an extraordinary or unusual thing, person, or event; an exceptional example or instance.|
|a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.|
hydrate hy·drate (hī'drāt')
A solid compound containing water molecules combined in a definite ratio as an integral part of a crystal. v. hy·drat·ed, hy·drat·ing, hy·drates
To supply water to a person or thing in order to restore or maintain fluid balance.
|hydrate (hī'drāt') Pronunciation Key
Noun A compound produced by combining a substance chemically with water. Many minerals and crystalline substances are hydrates.
any compound containing water in the form of H2O molecules, usually, but not always, with a definite content of water by weight. The best-known hydrates are crystalline solids that lose their fundamental structures upon removal of the bound water. Exceptions to this are the zeolites (aluminum silicate minerals or their synthetic analogues that contain water in indefinite amounts) as well as similar clay minerals, certain clays, and metallic oxides, which have variable proportions of water in their hydrated forms; zeolites lose and regain water reversibly with little or no change in structure
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