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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Excessive use of turf can also create heat islands — urbanized areas that experience higher temperatures than outlying areas — which pose a risk of burns, heat stroke and heat exhaustion. Stephanie Lam, The Mercury News, 15 Oct. 2024 Watch out for others: Check on infants, young children and the elderly more often for signs of heat exhaustion or heat stroke. Olivia Rose, The Arizona Republic, 8 Oct. 2024 One firefighter was taken to an occupational health facility for an injury, and another was treated at the scene for possible heat exhaustion. Karen Garcia, Los Angeles Times, 13 Sep. 2024 Overexposure to heat can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke, the weather service warned. Staff Reports, The Arizona Republic, 1 Oct. 2024 See all Example Sentences for heat exhaustion 

Word History

First Known Use

1861, in the meaning defined above

Time Traveler
The first known use of heat exhaustion was in 1861

Dictionary Entries Near heat exhaustion

Cite this Entry

“Heat exhaustion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heat%20exhaustion. Accessed 30 Nov. 2024.

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

More from Merriam-Webster on heat exhaustion

Last Updated: - Updated example sentences
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