flight feather
long, stiff, feather on the wing or tail of a bird that aids in the generation of lift and thrust
en-US/ˈflaɪt ˈfɛðɚ/
en-GB/ˈflaɪt ˈfɛðə/
long, stiff, feather on the wing or tail of a bird that aids in the generation of lift and thrust