veratrine
Ve*ra"trine, n. Etym: [Cf. F. vératrine. See Veratrum.] (Chem.) Defn: 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.