Sanguinaria \San`gui*na"ri*a\, n. [NL. See Sanguinary, a. & n.]

1. (Bot.) A genus of plants of the Poppy family.

Note: Sanguinaria Canadensis, or bloodroot, is the only species. It has a perennial rootstock, which sends up a few roundish lobed leaves and solitary white blossoms in early spring. See Bloodroot.

2. The rootstock of the bloodroot, used in medicine as an emetic, etc.

Source: Webster's Revised Unabridged Dictionary (1913)