chill factor

noun
🔊/ˈtʃɪl fæktə(r)/
🔊/ˈtʃɪl fæktər/
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  1. the extent to which the wind makes the air feel colder; a number which represents this风寒效应;风寒指数
    • With the chill factor, it's nearly minus forty here.加上风寒指数,这里的气温接近零下 40 度。