Veratric acid

from The Collaborative International Dictionary of English v.0.48

Veratric \Ve*ra"tric\, 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]