Answer: airfoil

AnswerCrossword Clue
AIRFOILSurface designed for lifting
AIRFOILShape of a plane's wing
AIRFOILPlane wing, e.g.
airfoilpart of an aircraft providing lift or control
airfoilany surface, as a wing, aileron, or stabilizer, designed to aid in lifting or controlling an aircraft by making use of the air currents through which it moves