noun: (aeronautical) Initialism of angle of attack. [(aeronautics) The angle between the chord line of an airfoil and the airflow over it; one of the determiners of the amount of lift produced by an airfoil.]
noun: (astronautics) Initialism of abort once around.
noun: (military) Initialism of add-on armor.
noun: Initialism of Administration on Aging.
noun: (aviation) Initialism of angle of attack. [(aeronautics) The angle between the chord line of an airfoil and the airflow over it; one of the determiners of the amount of lift produced by an airfoil.]
