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.

Source: Webster's Revised Unabridged Dictionary (1913)