veratrine

from The Collaborative International Dictionary of English v.0.48

Sabadilla \Sab`a*dil"la\ (s[a^]b`[.a]*d[i^]l"l[.a]), n. [Sp.
   cebadilla.] (Bot.)
   A Mexican liliaceous plant ({Schoenocaulon officinale});
   also, its seeds, which contain the alkaloid {veratrine}. It
   was formerly used in medicine as an emetic and purgative.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Veratrine \Ve*ra"trine\ (?; 277), n. [Cf. F. v['e]ratrine. See
   {Veratrum}.] (Chem.)
   A poisonous alkaloid obtained from the root of 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}.
   [1913 Webster]