Dictionary![]() ![]() an•hy•dridePronunciation: (an-hī'drīd, -drid), [key] —n. Chem. 1. a compound formed by removing water from a more complex compound: an oxide of a nonmetal (acid anhydride) or a metal (basic anhydride) that forms an acid or a base, respectively, when united with water. 2. a compound from which water has been abstracted. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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