the large wrinkled edible seed of a deciduous tree, consisting of two halves contained within a hard shell which is enclosed in a green fruit 胡桃
(亦作 walnut tree)the tall tree which produces this nut, with compound leaves and valuable ornamental timber that is used chiefly in cabinetmaking and gun stocks 胡桃树
Genus Juglans, family Juglandaceae: several species, including the common or English walnut (J. regia) 胡桃属,胡桃科,数种,包括核桃(拉丁名J.regia)
语源
late Old English walh-hnutu, from a Germanic compound meaning 'foreign nut'