from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A part or surface, such as a wing, propeller blade, or rudder, whose shape and orientation control stability, direction, lift, thrust, or propulsion.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A structure shaped to produce lift when moving in air.
- n. A wing of an aircraft.
from the GNU version of the Collaborative International Dictionary of English
- n. a surface such as the wing of an airplane designed to provide reactive force when in motion relative to the surrounding air.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight
Sorry, no etymologies found.
Feduccia (1993, p. 162) stated that ‘there can be no doubt that an airfoil is produced by the sifaka’s arms and the partial incorporation of a “lift mechanism” would advantageously augment the horizontal extent of a “leap”’.
The cross-sectional shape of the wing, from a side-view, is referred to as the airfoil section.
It is 15 miles per hour faster than a Piper Cub due to using a NACA developed airfoil.
“The turbine of the present invention has the advantage that it is efficient over a wider range of fluid flow rates, as compared with turbines of the prior art, due to the airfoil-shaped spacers,” the patent explains.
The aero frame uses abbreviated airfoil shapes to decrease aerodynamic drag while maintaining ride quality and stiffness.
As his airfoil “wings” sliced through the thick atmosphere, Keaton began to arch away from the sides of the cliff.
An early buy was TRW Inc.'s unprofitable airfoil operation.
Twelve, N. A.C.A.-airfoil-shaped full carbon-composite spokes support the rim.
You have to really know how to work the accelerator, brakes and airfoil.
And finally, the seat tube gets a true airfoil shape with flares or “trips” at the trailing edge to keep airflow smooth onto the back wheel.