Angle of attack

direction from which an assault is made; acute angle between the direction of the wind and the chord of an airfoil, AOA

Angle of attack (AOA, , Greek letter alpha) is a term used in aerodynamics to describe the angle between the airfoil's chord line and the relative airflow, wind, effectively the direction in which the aircraft is currently moving. It can be described as the angle between where the wing is pointing and where it is going.
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Noun
1. the acute angle between the direction of the undisturbed relative wind and the chord of an airfoil
(hypernym) angle of incidence, incidence angle

ANGOLO DI ATTACCO. ANGOLO DI INCIDENZA

Eng: angle of attack
Urdu: (طیرانِیات) زاوِیَہ عمَل ۔