Chem. [f. next.] Of or derived from angelica; as in Angelic acid C5H8O2 a monatomic monobasic acid of the acrylic series, obtained from the root of A. archangelica (and other plants); with a corresponding aldehyde C5H8O.
1863. Watts, Dict. Chem., I. Angelic acid crystallises in large long prisms and needles.
1869. Roscoe, Elem. Chem., 390. Angelic acid [occurs] in the archangel root, while angelic aldehyde is contained in the essential oil of chamomile.
