Tan"ni*gen\, n. [Tannin + -gen.] (Pharm.) A compound obtained as a yellowish gray powder by the action of acetyl chloride or acetic anhydride or ordinary tannic acid. It is used as an intestinal astringent, and locally in rhinitis and pharyngitis.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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