A Mexican liliaceous plant (Schœnocaulon officinale); also, its seeds, which contain the alkaloid veratrine. It was formerly used in medicine as an emetic and purgative. [1913 Webster]
sabadilla, n.
1 a Mexican plant, Schoenocaulon officinale, with seeds yielding veratrine.
2 a preparation of these seeds, used in medicine and agriculture.