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coumarin |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Coumarin \Cou"ma*rin\ (k[=oo]"m[.a]*r[i^]n), n. [F., fr coumarou, a tree of Guiana.] (Chem.) The concrete essence of the tonka bean, the fruit of {Dipterix (formerly Coumarouna) odorata} and consisting essentially of coumarin proper, which is a white crystalline substance, {C9H6O2}, of vanilla-like odor, regarded as an anhydride of coumaric acid, and used in flavoring. Coumarin in also made artificially.
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