"tetterwort" in the noun sense
1. bloodroot, puccoon, redroot, tetterwort, Sanguinaria canadensis
perennial woodland native of North America having a red root and red sap and bearing a solitary lobed leaf and white flower in early spring and having acrid emetic properties rootstock used as a stimulant and expectorant
Source: WordNet® (An amazing lexical database of English)
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