Juglandin
Pronunciation : Jug"lan*din
Part of Speech : n.
Etymology : [L. juglans, -andis, a walnut: cf. F. juglandine.] (Chem.)
Definition : Defn: An extractive matter contained in the juice of the green shucks of the walnut (Juglans regia). It is used medicinally as an alterative, and also as a black hair dye.
Source : Webster's Unabridged Dictionary, 1913