airfoil
Definitions
A streamlined shape, such as an airplane wing or propeller blade, designed to produce lift or thrust when moving through a fluid.
The cross-sectional shape of an object that creates a difference in pressure between its upper and lower surfaces to generate aerodynamic force.
Examples
The engineer carefully adjusted the shape of the airfoil to reduce drag during high-speed flight.
A cross-section of an airplane wing reveals the curved geometry of the airfoil designed to generate lift.