• Webster's Revised Unabridged Dictionary
    • n Tannigen (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.
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Century Dictionary and Cyclopedia
    • n tannigen A trade-name of acetyl-tannin, a yellowish-gray powder without smell or taste, used medicinally as an astringent remedy by both external and internal application.
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Webster's Revised Unabridged Dictionary
Tann,in + -gen,