The Collaborative International Dictionary
veratria
Veratrine \Ve*ra"trine\ (?; 277), n. [Cf. F. v['e]ratrine. See Veratrum.] (Chem.) A poisonous alkaloid obtained from the root hellebore ( Veratrum) and from sabadilla seeds as a white crystalline powder, having an acrid, burning taste. It is sometimes used externally, as in ointments, in the local treatment of neuralgia and rheumatism. Called also veratria, and veratrina.
Wiktionary
veratria
n. (context chemistry archaic English) veratrine