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Definition of Wing-nut
1. Noun. Any tree of the genus Pterocarya; fruit is a small winged nutlet; Caucasus to southeastern Asia.
Exact synonyms: Wing Nut
Group relationships: Genus Pterocarya, Pterocarya
Specialized synonyms: Caucasian Walnut, Pterocarya Fraxinifolia
Generic synonyms: Nut Tree
Group relationships: Genus Pterocarya, Pterocarya
Specialized synonyms: Caucasian Walnut, Pterocarya Fraxinifolia
Generic synonyms: Nut Tree
2. Noun. A threaded nut with winglike projections for thumb and forefinger leverage in turning.