wing nut
noun
1
- a nut with a pair of projections for the fingers to turn it on a screw蝶形螺母。
2
- an Asian tree of the walnut family, with a deeply fissured trunk, compound leaves, and characteristic broad-winged nutlets枫杨属植物。
2.1
- Genus Pterocarya, family Juglandaceae.枫杨属, 胡桃科。
3
wingnut
US informal a mad or crazy person〈美, 非正式〉疯子, 精神失常者：some wingnut down in Finance.
菲亚南斯的某个疯子。
3.1
- a person with extreme, typically right-wing, views极端分子, （尤指）极右分子：
McCarthyite wingnuts.
麦卡锡主义的极右分子。