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

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

The park's dedicated search and rescue team, made up of 70 volunteers, is always on standby to swiftly mobilize to hikers in distress -- often due to heat exhaustion or physical fatigue. —Doc Louallen, ABC News, 15 Aug. 2024

In Jefferson County, at least five firefighters were injured on Wednesday, including four who suffered heat exhaustion, said Mark Techmeyer, a spokesperson for the county sheriff's office. —Christopher Cann, USA TODAY, 2 Aug. 2024

Clogged sweat glands can prevent the body from cooling itself properly and lead to heat exhaustion. —Heather Jones, Verywell Health, 23 July 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