Hy·drate v. t. [imp. & p. p. Hydrated p. pr. & vb. n. Hydrating ] To form into a hydrate; to combine with water.
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  Hy·dra·ted a. Formed into a hydrate; combined with water.
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  hydrated
       adj : containing combined water (especially water of
             crystallization as in a hydrate) [syn: hydrous] [ant:
              anhydrous]