What is "sabadilla"

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

n. 1 A Mexican and Central American plant of the lily family ((taxlink Schoenocaulon officinale species noshow=1)). 2 The seeds of this plant, used in medicine and insecticides.