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Meaning of coumarin

cou•ma•rin

Pronunciation: (k'mu-rin), [key]
— n.
  1. a fragrant crystalline substance, CHO, obtained from the tonka bean, sweet clover, and certain other plants or prepared synthetically, used chiefly in soaps and perfumery.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.