Source : Webster's Revised Unabridged Dictionary (1913)

Umbellic \Um*bel"lic\, a. (Chem.)
   Pertaining to, or obtained from, certain umbelliferous
   plants; as, umbellic acid.

   {Umbellic acid}. (Chem.)
   (a) Anisic acid. [Obs.]
   (b) A yellow powder obtained from umbelliferone.