heatstroke
🇺🇸
/ˈhiːtstrəʊk/
🇬🇧
/ˈhiːtstrəʊk/
A serious condition caused by being in very hot weather or a hot environment for too long, making the body's temperature dangerously high.
After spending the entire day in the blazing sun without any shade, he suffered from heatstroke.