Plumbagin
Pronunciation : Plum*ba"gin
Part of Speech : n.
Etymology : [L. plumbago leadwort, fr. plumbum lead; cf. F. plombagin.] (Chem.)
Definition : Defn: A crystalline substance said to be found in the root of a certain plant of the Leadwort (Plumbago) family.
Source : Webster's Unabridged Dictionary, 1913