wing nut

Từ điển Oxford Learners Wordfinder Dictionary

noun

1. any tree of the genus Pterocarya;
fruit is a small winged nutlet;
Caucasus to southeastern Asia
• Syn:
wing-nut
• Hypernyms:
nut tree
• Hyponyms:
Caucasian walnut, Pterocarya fraxinifolia
• Member Holonyms:
Pterocarya, genus Pterocarya
2. a threaded nut with winglike projections for thumb and forefinger leverage in turning
• Syn:
wing-nut, wing screw, butterfly nut, thumbnut
• Hypernyms:
nut