Found 2 items, similar to Water of hydration.
English → English (WordNet) Definition: water of hydration water of hydration n : the water present in hydrated compounds [syn: water of crystallization , water of crystallisation]
English → English (gcide) Definition: Water of hydration 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]