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hydrate: Meaning and Definition of

hy•drate

Pronunciation: (hī'drāt), [key]
— n., v., -drat•ed, -drat•ing.
—n.
  1. any of a class of compounds containing chemically combined water. In the case of some hydrates, as washing soda, NaCO&multiplydot;10HO, the water is loosely held and is easily lost on heating; in others, as sulfuric acid, SO&multiplydot;HO, or HSO, it is strongly held as water of constitution.
—v.t., v.i.
  1. to combine chemically with water.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
hydrastis hydrated
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