airfoil

American  

[air-foil] / ˈɛərˌfɔɪl /

noun

Aeronautics.

1. any 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.

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airfoil British  

/ ˈɛəˌfɔɪl /

noun

1. Also called: aerofoil.  a cross section of an aileron, wing, tailplane, or rotor blade

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airfoil Scientific  

/ âr′foil′ /

1. A structure having a shape that provides lift, propulsion, stability, or directional control in a flying object. An aircraft wing provides lift by causing air to pass at a higher speed over the wing than below it, resulting in greater pressure below than above. Propellers are airfoils that are spun rapidly to provide propulsion.

2. See more at Bernoulli effect See Note at aerodynamics

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Etymology

Origin of airfoil

First recorded in 1920–25; air ¹ + foil ²

Example Sentences

See Examples For:

airfoil

The first model is one that Ahmed previously developed to generate high-performing airfoil designs.

From Science Daily ● Oct. 20, 2023

Parts of which household device may include the airfoil propulsion, Helmholtz cavity, and impeller?

From Slate ● Sep. 14, 2023

“I often say it’s like seeing a car parked on the side of the road with racing slicks and racing stripes and an airfoil on the back and a big engine,” Ray said.

From Seattle Times ● Nov. 22, 2021

Lift, as you will recall, is the result of the pressure differences between the top and bottom parts of an airfoil.

From Scientific American ● Feb. 4, 2020

She reached for the control that in a gyropter would tilt the airfoil, and pushed the throttle forward, and at once the intention craft leapt into the air.

From "The Amber Spyglass" by Philip Pullman