Airfoil
CROSS-SECTIONAL SHAPE OF A WING, BLADE (OF A PROPELLER, ROTOR, OR TURBINE), OR SAIL
Aerofoil; Air foil; Thin-airfoil theory; Thin Airfoil Theory; Thin airfoil theory; Airfoil1; Laminar flow airfoil; Laminar-flow airfoil; Airfoils; Wing profile; Aerofoil section
An airfoil (American English) or aerofoil (British English) is the cross-sectional shape of an object whose motion through a gas is capable of generating significant lift, such as a wing, a sail, or the blades of propeller, rotor, or turbine.