umbelliferone

Um`bel*lif"er*one, n. (Chem.) Defn: A tasteless white crystalline substance, C9H6O3, found in the bark of a certain plant (Daphne Mezereum), and also obtained by the distillation of certain gums from the Umbelliferæ, as galbanum, asafetida, etc. It is analogous to coumarin. Called also hydroxy- coumarin.

---