wind chill

or wind·chill

[ wind-chil, win- ]
/ ˈwɪndˌtʃɪl, ˈwɪn- /

noun Meteorology.

the apparent temperature felt on the exposed human body owing to the combination of temperature and wind speed.
Also called wind·chill factor [wind-chil, win-,] /ˈwɪndˌtʃɪl ˌfæk tər, ˈwɪn-,/ wind·chill in·dex [wind-chil in-deks, win-] /ˈwɪndˌtʃɪl ˌɪn dɛks, ˈwɪn-/, chill factor.

Origin of wind chill

First recorded in 1945–50