a Mexican plant, Schoenocaulon officinale, of the lily family, having long, grasslike leaves and bitter seeds.
2.
the seeds of this plant, formerly used medicinally and as a source of veratrine and veratridine.
Origin: 1805–15; < Spanish cebadilla Indian caustic barley, diminutive of cebada barley (feminine) ≪ Latin cibātus (masculine) fodder, nutriment, equivalent to cibā(re) to feed + -tus suffix of v. action