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heat index

noun
🔊/ˈhiːt ɪndeks/
🔊/ˈhiːt ɪndeks/
[singular] (North American English)
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  1. a measure of temperature and the effects of humidity combined. When the level of humidity is high, the air feels hotter and more uncomfortable.
    • Check the weather for that day's heat index, and notice your body's signals. 检查天气以了解当日的热量指数，并注意您身体的信号。