San·gui·na·ri·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.
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 Blood·wort n. Bot. A plant, Rumex sanguineus, or bloody-veined dock. The name is applied also to bloodroot (Sanguinaria Canadensis), and to an extensive order of plants (Hæmodoraceæ), the roots of many species of which contain a red coloring matter useful in dyeing.
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 Blood·root n. Bot. A plant (Sanguinaria Canadensis), with a red root and red sap, and bearing a pretty, white flower in early spring; -- called also puccoon, redroot, bloodwort, tetterwort, turmeric, and Indian paint. It has acrid emetic properties, and the rootstock is used as a stimulant expectorant. See Sanguinaria.
 Note: ☞ In England the name is given to the tormentil, once used as a remedy for dysentery.
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 Sanguinaria canadensis
      n : perennial woodland native of North America having a red root
          and red sap and bearing a solitary lobed leave and white
          flower in early spring and having acrid emetic
          properties; rootstock used as a stimulant and expectorant
          [syn: bloodroot, puccoon, redroot, tetterwort]