The Collaborative International Dictionary
Plumbagin \Plum*ba"gin\ (pl[u^]m*b[=a]"j[i^]n), n. [L. plumbago leadwort, fr. plumbum lead; cf. F. plombagin.] (Chem.) A crystalline substance said to be found in the root of a certain plant of the Leadwort ( Plumbago) family.
Wiktionary
n. (context organic compound English) The toxin 5-hydroxy-2-methyl-1,4-naphthoquinone.
Wikipedia
Plumbagin or 5-hydroxy-2-methyl-1,4-naphthoquinone is an organic compound with the chemical formula . It is regarded as a toxin and it is genotoxic and mutagenic.
Plumbagin is a yellow dye, formally derived from naphthoquinone.
It is named after the plant genus Plumbago, from which it was originally isolated. It is also commonly found in the carnivorous plant genera Drosera and Nepenthes. It is also a component of the black walnut drupe ( Juglans nigra).
Usage examples of "plumbagin".
Aztec medicine to be a diuretic and as useful in gangrene treatment, has been found to contain plumbagin, an anti-bacterial agent, effective against staphylococcus.