heat exhaustion

American  

noun

1. a condition characterized by faintness, rapid pulse, nausea, profuse sweating, cool skin, and collapse, caused by prolonged exposure to heat accompanied by loss of adequate fluid and salt from the body.

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heat exhaustion British  

noun

1. Also called: heat prostration.  a condition resulting from exposure to intense heat, characterized by dizziness, abdominal cramp, and prostration Compare heatstroke

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Etymology

Origin of heat exhaustion

First recorded in 1935–40

Example Sentences

On Wednesday, Prime Minister Narendra Modi posted on X urging people to stay hydrated, carry water outdoors and watch for signs of heat exhaustion, especially among children, the elderly and outdoor workers.

From BBC • May 28, 2026

Israeli media reported that the incident could have been connected to the daycare's heating system, suggesting heat exhaustion and dehydration as possible causes.

From Barron's • Jan. 20, 2026

Brazilian Piquet struggled with heat exhaustion in the final stages but was able to come home fifth, giving him the two points he needed to overtake Reutemann, with Laffite in sixth.

From BBC • Dec. 1, 2025

“If you or someone around you experiences symptoms of heat stroke or heat exhaustion, such as dizziness, nausea, rapid heartbeat, confusion, or passing out, seek medical help immediately.”

From Los Angeles Times • Aug. 20, 2025

This is twenty-four days of heat, exhaustion, and monotony.

From "A Heart in a Body in the World" by Deb Caletti