Coumarin

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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.
     [1913 Webster]