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 dead included the 37-year-old firefighter, while another received treatment for heat exhaustion, Director of Fire Services Andy Yeung said. —Chan Ho-Him and Ken Moritsugu The Associated Press, Arkansas Online, 27 Nov. 2025

Another firefighter was treated for heat exhaustion, Fire Services Director Andy Yeung said. —John Feng, MSNBC Newsweek, 26 Nov. 2025

The infamous case of Amazon stationing an ambulance to treat heat exhaustion outside a Pennsylvania warehouse in the early 2010s because there was no air-conditioning comes to mind. —Jason Del Rey, Fortune, 25 Nov. 2025

People most at risk for heat exhaustion are the elderly, those with high blood pressure, and individuals working or exercising in the heat. —Brandi D. Addison, jsonline.com, 3 Oct. 2025

Word History

First Known Use

1861, in the meaning defined above

Rhymes for heat exhaustion

• faustian

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