flight feather
US /ˈflaɪt ˌfeð.ər/
UK /ˈflaɪt ˌfeð.ər/
1.
pena de voo, rêmige
one of the large, stiff, and asymmetrical feathers on the wing or tail of a bird, essential for flight
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The eagle soared high, its powerful wings propelled by strong flight feathers.
A águia pairava alto, suas asas poderosas impulsionadas por fortes penas de voo.
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Scientists study the structure of flight feathers to understand avian aerodynamics.
Cientistas estudam a estrutura das penas de voo para entender a aerodinâmica aviária.