'Umbellic acid' definitions:

Definition of 'Umbellic acid'

From: GCIDE

Umbellic \Um*bel"lic\, a. (Chem.) Pertaining to, or obtained from, certain umbelliferous plants; as, umbellic acid. [1913 Webster]
Umbellic acid. (Chem.) (a) Anisic acid. [Obs.] (b) A yellow powder obtained from umbelliferone. [1913 Webster]