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

Speaking from a hospital room in the Mina camp, where authorities treat pilgrims for heat exhaustion, the health ministry's Jameel Abualenain said he was mainly concerned "about rising temperatures" affecting pilgrims.

From Barron's • May 25, 2026

"It can cause potentially fatal health problems such as heat exhaustion and heat stroke but it can also trigger events like heart attacks or stroke."

From BBC • Jan. 27, 2026

High temperatures increase the risk for heat-related illnesses like heat exhaustion and heat stroke, especially for older adults and children, according to the L.A.

From Los Angeles Times • Aug. 30, 2025

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

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