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wind chill index

or wind·chill in·dex

[ wind chil in-deks, win- ]

noun

, Meteorology.
  1. a chart from which the combined effects of temperature and wind speed are formulaically calculated to determine wind chill:

    Once we hit a certain zone on the wind chill index, the risk of frostbite is apparent.



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Word History and Origins

Origin of wind chill index1

First recorded in 1935–40

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wind-chill factorwind chimes