heat exhaustion
noun/ˈhiːt ɪɡzɔːstʃən/
/ˈhiːt ɪɡzɔːstʃən/
[uncountable]- an illness that happens when you are very active in hot conditions and that makes you feel very weak and sick
- Some shoppers collapsed with heat exhaustion and 20 needed hospital treatment.
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heat exhaustion