heat exhaustion

noun

: a condition marked by weakness, nausea, dizziness, and profuse sweating that results from physical exertion in a hot environment

called also heat prostration

compare heatstroke

Examples of heat exhaustion in a Sentence

Recent Examples on the Web

The difference between heat exhaustion and heat stroke and the CDC’s advice on how to respond. —Discover Magazine, 8 June 2024

But at a campaign rally for presumptive Republican presidential nominee Donald Trump in Phoenix, 11 people fell ill from heat exhaustion by late afternoon and were taken to the hospital, where they were treated and released, fire officials said. —Rachel Ventresca, Fortune, 6 June 2024

This weather is considered a major heat risk; overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, this can lead to heat stroke. —Emily Shapiro, ABC News, 3 June 2024

Other early signs of heat exhaustion include fatigue and thirst. —Amanda MacMillan, Health, 10 May 2024

Word History

First Known Use

1861, in the meaning defined above

Kids Definition

heat exhaustion

noun

: a condition marked by weakness, nausea, dizziness, and much sweating that results from physical exertion in a hot environment

called also heat prostration

compare heat stroke

Medical Definition

heat exhaustion

noun

: a condition characterized by faintness or fainting, palpitations, nausea, vomiting, headache, and profuse sweating and resulting from physical exertion in a hot environment

called also heat prostration

compare heatstroke