a. (Chem.) Pertaining to, or derived from, plants of the genus Veratrum. [ 1913 Webster ]

Veratric acid (Chem.), an acid occurring, together with veratrine, in the root of white hellebore (Veratrum album), and in sabadilla seed; -- extracted as a white crystalline substance which is related to protocatechuic acid. [ 1913 Webster ]