walnut
/ˈwɔːlnʌt/noun
1
- 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。
2
- （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。
2.1
- Genus Juglans, family Juglandaceae: several species, including the common (or English) walnut (J. regia).胡桃属, 胡桃科： 数种, 包括英格兰胡桃（拉丁名J. regia）。
词源
late Old English walh-hnutu, from a Germanic compound meaning 'foreign nut'.