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Webster 1913 Edition
Juglandin
Jug′lan-din
,Noun.
[L.
juglans
, -andis
, a walnut: cf. F. juglandine
.] (Chem.)
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.