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wind chill index

or wind·chill in·dex

[ wind-chil in-deks, win-, ]
/ ˈwɪnd ˌtʃɪl ˌɪn dɛks, ˈwɪn-, /
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noun Meteorology.

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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Also called wind chill chart, wind·chill chart [wind-chil chahrt, win-] /ˈwɪnd ˌtʃɪl ˌtʃɑrt, ˈwɪn-/ .

Origin of wind chill index

First recorded in 1935–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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