heatstroke

noun

heat·​stroke ˈhēt-ˌstrōk 

: a life-threatening condition marked especially by cessation of sweating, extremely high body temperature, and collapse that results from prolonged exposure to high temperature compare heat exhaustion, sunstroke

Examples of heatstroke in a Sentence

Recent Examples on the Web

The Ministry of Environment sent out a heatstroke alert for the Kumamoto area, with temperatures expected to reach as high as 91 degrees Fahrenheit on Thursday. — CBS News, 30 July 2026

This can lead to unsafe levels of heating, which could cause heatstroke. — Bestreviews, Mercury News, 30 July 2026

The Ministry of Environment sent out a heatstroke alert for the Kumamoto area, with temperatures rising above 91 degrees Thursday. — Mari Yamaguchi, Los Angeles Times, 30 July 2026

The Ministry of Environment sent out a heatstroke alert for the Kumamoto area, with temperatures expected to reach as high as 33 C (91 F) Thursday. — ABC News, 29 July 2026

Word History

First Known Use

1874, in the meaning defined above

Rhymes for heatstroke

• awoke
• baroque
• bespoke
• colloque
• convoke
• evoke
• invoke
• keystroke
• kinfolk
• kinsfolk
• menfolk
• provoke

Kids Definition

heatstroke

noun

heat·​stroke ˈhēt-ˌstrōk 

: a condition marked especially by the stopping of sweating, a high body temperature, and exhaustion that results from exposure to high temperature for a long time compare sunstroke

Medical Definition

heatstroke

noun

heat·​stroke ˈhēt-ˌstrōk 

: a life-threatening condition characterized by cessation of sweating with inadequate elimination of body heat, extremely high temperature, rapid pulse, hot dry skin, flaccid muscles, delirium, collapse, and coma and resulting from prolonged exposure to high environmental temperature which causes a dysfunction of the temperature-regulating mechanism of the body see sunstroke compare heat exhaustion