wind tunnel

[wind]
noun Aeronautics.
a tubular chamber or structure in which a steady current of air can be maintained at a controlled velocity, equipped with devices for measuring and recording forces and moments on scale models of complete aircraft or of their parts or, sometimes, on full-scale aircraft or their parts.

Origin:
1910–15, Americanism

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World English Dictionary
wind tunnel (wɪnd)
 
n
a chamber for testing the aerodynamic properties of aircraft, aerofoils, etc, in which a current of air can be maintained at a constant velocity

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
wind tunnel  
A chamber through which air is blown at controlled speeds to simulate the motion of objects placed in the chamber through the air, used to study the aerodynamic properties of objects such as automobiles, airplanes, and missiles.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
So in spite of computational euphoria, wind tunnel testing is still important.
Frankly, it never would have occurred to me to test flying squirrels in a wind
  tunnel.
It's not too difficult to train people to get good lift over drag positions in
  a wind tunnel.
The scientists brought ski jumpers to a wind tunnel.
Images for wind tunnel
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