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doc Definition of umbelliferone
    English to English
    noun
  • 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.
  • source: Webster 1913
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