wind-chill factor

windchill factor

[wind-chil, win-]
noun Meteorology.
the apparent temperature felt on the exposed human body owing to the combination of temperature and wind speed.
Also, wind chill factor, wind-chill factor.
Also called chill factor, wind chill, windchill index.


Origin:
1945–50

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Science Dictionary
wind-chill factor  
The temperature of windless air that would have the same effect on exposed human skin as a particular combination of wind speed and air temperature. As the wind blows faster, heat is lost more quickly from exposed skin, making a person feel colder even though the air temperature remains the same. Also called chill factor.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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