Category:Juglandin

Jug"lan*din, n. Etym: [L. juglans, -andis, a walnut: cf. F. juglandine.] (Chem.)

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.