(genus Pterocarya), any of about six species of Asian trees of the walnut family (Juglandaceae). They often are 30 m (about 100 feet) tall and bear winged, edible, one-seeded nuts. One species, P. stenoptera, is planted as an ornamental. The wood of some species is used in cabinetmaking.
WING NUT
Meaning of WING NUT in English
Britannica English vocabulary. Английский словарь Британика. 2012