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]