Bloodwort \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 (H[ae]modorace[ae]), the roots of many species of which contain a red coloring matter useful in dyeing. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

Bloodwort \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 (H[ae]modorace[ae]), the roots of many species of which contain a red coloring matter useful in dyeing.

Source: Webster's Revised Unabridged Dictionary (1913)