kaˈstānēə noun
Usage: capitalized
Etymology: New Latin, from Latin, chestnut — more at chestnut
: a small genus of rough-barked trees or shrubs (family Fagaceae) native to temperate regions and characterized by having four bud scales on each bud, unlobed leaves, and staminate flowers in stiff cylindrical catkins, the fruit ripening in one season and being a single nut or group of two or three nuts within a 2- to 4-valved scaly prickly involucre — see chestnut ; compare quercus