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A device that provides reactive force when in motion relative to the surrounding air
Answer for the clue "A device that provides reactive force when in motion relative to the surrounding air ", 7 letters:
airfoil
Alternative clues for the word airfoil
Word definitions for airfoil in dictionaries
WordNet
Word definitions in WordNet
n. a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight [syn: aerofoil , control surface , surface ]
Wikipedia
Word definitions in Wikipedia
An airfoil (in American English ) or aerofoil (in British English ) is the shape of a wing , blade (of a propeller , rotor , or turbine ), or sail (as seen in cross-section ). An airfoil-shaped body moved through a fluid produces an aerodynamic force . ...
Wiktionary
Word definitions in Wiktionary
alt. 1 (context American spelling English) A structure shaped to produce lift when moving in air. 2 (context American spelling English) A wing of an aircraft. n. 1 (context American spelling English) A structure shaped to produce lift when moving in air. ...
Douglas Harper's Etymology Dictionary
Word definitions in Douglas Harper's Etymology Dictionary
1922, U.S. form of aerofoil .
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
airfoil \air"foil`\ n. 1. 1 a surface such as the wing of an airplane designed to provide reactive force when in motion relative to the surrounding air. Syn: aerofoil
Usage examples of airfoil.
He leveled off, keeping his weight back but centered, adjusting the airfoil to slow the precipitous drop.
He fought with his airfoil controls and tail rotor in order to jerk the aircraft around.
Nor did the lower one show any sign of floats, stabilizers, or airfoil surfaces.
The butler tried hurling his tray at her, from clear across the pool, but the metal disk sailed in an airfoil curve and only smashed a window.
I dreamed forebodingly of driving the several miles to the airfoil shed and doing such-and-such to one of the cutting-edge craft by torchlight, by dreamlight.
Now the only control the crew on the flight deck could exert over their fate was through the limited influence of airfoil surfaces on thin air.
With a rumble of displaced air, the Libra-class freighter broke through the high wisps of cloud, airfoil body providing lift to assist the engines as the freighter decelerated and turned to the strip heading from orbit.
The craft was an enormous wedge-shaped airfoil about eight hundred feet across and one thousand feet long.
The landing craft now nestled into the underside of a hundred-meter-long biopackage built by the alien Bgarth, supported four thousand meters above the surface by vast airfoils filled with buoyant hydrogen, driven by biomechanical turbojets.
The airfoils hissed just like eroding orbital dust, as if death, an amateur poet, required an exact rhyme.
This was where the big payload ships rode their boosters up through the atmosphere or glided back to Earth with their airfoils extended.
Icefire dissipated, and the twisting coronal glow around the edge-effect airfoils faded away, and Melinda started breathing again as she looked it over.
Those little airfoils you saw on the field when you came in have no range at all.
Several swamp buggies and airfoils were rusting on a parking stand just beyond the forest fringe.
They sat quietly, not talking, listening intently for some new note, but knowing all the while that any sound the Pirate might make would be concealed by the whirring roar of the air sweeping past the giant airfoils of the plane.