heat exhaustion

noun

Definition of heat exhaustion

: 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

In March 2018, during the Rock 'n’ Roll Dallas Half Marathon, two runners collapsed because of heat exhaustion. Dallas News, "Here’s what you might not know about dehydration in the summer heat," 24 July 2019 In Pennsylvania, nine firefighters were treated for heat exhaustion and six transported to a hospital for treatment while fighting a house fire in sweltering conditions Saturday. Washington Post, "Heat and humidity grip East Coast as Midwest gets reprieve," 21 July 2019 Elsewhere in Pennsylvania, nine firefighters were treated for heat exhaustion and six transported to a hospital for treatment while fighting a house fire in sweltering conditions. Time, "'Oppressive and Dangerous' Heat Wave Continues in Eastern U.S.," 21 July 2019 Two civilians were taken to a hospital for evaluation and two firefighters were taken for heat exhaustion. USA TODAY, "Tubing, Hemingway, great white sharks: News from around our 50 states," 21 July 2019 Symptoms of heat exhaustion include headache, nausea, dizziness, weakness, irritability, thirst, heavy sweating, elevated body temperature and decreased urine output. Ben Tobin, The Courier-Journal, "Deadly heat is descending on Louisville. Here's what you need to know," 18 July 2019 Dizziness, headache, cool, moist skin, heavy sweating and muscle cramps are all signs of heat exhaustion, according to the Cleveland Clinic. Emily Bamforth, cleveland.com, "5 ways to take care of your health in extreme heat," 18 July 2019 Our superintendents schedule more labor-intensive work for cooler times of the day and monitor workers closely for signs of heat exhaustion. Abdel Jimenez, chicagotribune.com, "Chicago’s temperatures are set to soar, but no federal law covers working in extreme heat. Here’s how to stay safe.," 17 July 2019 An Anderson Township firefighter was treated for heat exhaustion after fighting a blaze Wednesday night that did an estimated $150,000-worth of damage to an uninhabited wing of the SEM Manor retirement community under renovation. Jeanne Houck, Cincinnati.com, "No cause yet known in Anderson Twp. fire that caused $150,000 in damage," 11 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'heat exhaustion.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of heat exhaustion

1861, in the meaning defined above

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More Definitions for heat exhaustion

heat exhaustion

noun

English Language Learners Definition of heat exhaustion

medical : a condition that happens when someone is too active in extremely hot conditions and that causes a person to sweat and feel very weak, dizzy, etc.

heat exhaustion

noun

Medical Definition of heat exhaustion

: 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