What is "umbellic"

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

1. Anisic acid. [Obs.]

2. A yellow powder obtained from umbelliferone.

a. 1 umbellar 2 (context chemistry English), pertaining to, or obtained from, certain umbelliferous plants, such as umbellic acid