Fraxin

Fraxin

Frax"in\, n. [From Fraxinus.] (Chem.) A colorless crystalline substance, regarded as a glucoside, and found in the bark of the ash (Fraxinus) and along with esculin in the bark of the horse-chestnut. It shows a delicate fluorescence in alkaline solutions; -- called also paviin.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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