Jug"lan*din (?), n. [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.
Jug"lan*dine (?), n. An alkaloid found in the leaves of the walnut
(Juglans regia).
||Jug"lans (?), n. [L., walnut.] (Bot.) A genus of valuable trees,
||including the true walnut of Europe, and the America black walnut,
||and butternut.
||
Ju"glone (?), n. [L. juglans the walnut + -one.] (Chem.) A yellow
crystalline substance resembling quinone, extracted from green shucks
of the walnut (Juglans regia); -- called also nucin.
Ju"gu*lar (?), a. [L. jugulum the collar bone, which joins together the
shoulders and the breast, the throat, akin to jungere to yoke, to join:
cf. F. jugulaire. See Join.]
1. (Anat.) (a) Of or pertaining to the throat or neck; as, the jugular
vein. (b) Of or pertaining to the jugular vein; as, the jugular
foramen.
2. (Zoöl.) Having the ventral fins beneath the throat; -- said of
certain fishes.