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
Over the past 25 years, more than 1,010 children have died of heatstroke after they were left or were trapped in a hot car.
—
Alexis Simmerman, Austin American Statesman, 3 July 2025
In the eyes, heatstroke damages the natural defense systems that normally counteract the buildup of harmful molecules called reactive oxygen species, explains Lucía Echevarría-Lucas, an ophthalmologist at the Hospital of La Axarquía in Spain.
—Sanket Jain, Smithsonian Magazine, 16 May 2025
More than 1,010 children have died of heatstroke from being left or trapped in a hot car over the past 25 years, with 39 children dying of heatstroke in vehicles in 2024 — a 35% increase from 2023, according to noheatstroke.org.
—Meredith Colias-Pete, Chicago Tribune, 18 June 2025
The National Highway Traffic Safety Administration (NHTSA) reported 39 deaths from vehicular heatstroke among children last year.
—Jenna Sundel, MSNBC Newsweek, 10 June 2025
See All Example Sentences for heatstroke
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Alexis Simmerman, Austin American Statesman, 3 July 2025
In the eyes, heatstroke damages the natural defense systems that normally counteract the buildup of harmful molecules called reactive oxygen species, explains Lucía Echevarría-Lucas, an ophthalmologist at the Hospital of La Axarquía in Spain.
—Sanket Jain, Smithsonian Magazine, 16 May 2025
More than 1,010 children have died of heatstroke from being left or trapped in a hot car over the past 25 years, with 39 children dying of heatstroke in vehicles in 2024 — a 35% increase from 2023, according to noheatstroke.org.
—Meredith Colias-Pete, Chicago Tribune, 18 June 2025
The National Highway Traffic Safety Administration (NHTSA) reported 39 deaths from vehicular heatstroke among children last year.
—Jenna Sundel, MSNBC Newsweek, 10 June 2025
See All Example Sentences for heatstroke
Cite this Entry
“Heatstroke.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heatstroke. Accessed 18 Jul. 2025.
Copy CitationKids 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
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