Hydration

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Hydration \Hy*dra"tion\, n. (Chem.)
     The act of becoming, or state of being, a hydrate.
     [1913 Webster]
  
     {Water of hydration} (Chem.), water chemically combined with
        some substance to form a hydrate; -- distinguished from


        {water of crystallization}.
        [1913 Webster]

From WordNet (r) 2.0 [wn]:

  hydration
       n : the process of combining with water; usually reversible