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 The 53-year-old officer is the first on-duty officer to die while on duty since 2018, when Vu Nguyen died days after collapsing from heat exhaustion during a training exercise, and the first to be fatally shot since Derek Owens in 2008. Adam Ferrise, cleveland, "Slain Cleveland police officer remembered as dedicated, generous, funny officer at funeral attended by U.S. Attorney General," 11 Sep. 2020 Signs of heat exhaustion include cold, clammy skin; a fast, weak pulse; vomiting; weakness and fainting. Benjamin Vanhoose, PEOPLE.com, "Woman, 41, Dies While Hiking in Santa Monica Mountains During California Heat Wave," 7 Sep. 2020 Nobody was killed by the inferno, although 68 firefighters suffered minor injuries, including smoke inhalation and heat exhaustion. Zachary Halaschak, Washington Examiner, "Sailor questioned as arson suspect for fire on Navy warship that burned for four days," 28 Aug. 2020 But effects like heat exhaustion or collapse can come quicker than effects from the smoke. Annie Vainshtein, SFChronicle.com, "Masks? Fans? Fresheners? Do's and don'ts of dealing with smoky air in your Bay Area home and car," 24 Aug. 2020 Jenkins was unaware of any injuries but did say one firefighter was being treated for heat exhaustion. Arkansas Online, "Rogers firefighters respond to fire at recycling facility," 20 Aug. 2020 The Harris County Constable Precinct 1 Constable's Office is issuing a warning to pet owners after discovering a dog tethered to a chain that apparently died from heat exhaustion. Rebecca Hennes, Houston Chronicle, "Police issue dire warning to pet owners after finding chained dog that died of heat exhaustion," 20 Aug. 2020 Three of his co-workers have collapsed from heat exhaustion over the years. Somini Sengupta New York Times, Star Tribune, "Inequality at the boiling point: Extreme heat takes toll on poor, vulnerable," 20 Aug. 2020 People in the grip of heat exhaustion can be combative and confused. Matt Jancer, Wired, "How to Stay Cool Without Air Conditioning," 9 Aug. 2020

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.

See More

First Known Use of heat exhaustion

1861, in the meaning defined above

Keep scrolling for more

Learn More about heat exhaustion

Time Traveler for heat exhaustion

Time Traveler

The first known use of heat exhaustion was in 1861

See more words from the same year

Statistics for heat exhaustion

Last Updated

16 Sep 2020

Cite this Entry

“Heat exhaustion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heat%20exhaustion. Accessed 27 Sep. 2020.

Keep scrolling for more

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

More from Merriam-Webster on heat exhaustion

Britannica.com: Encyclopedia article about heat exhaustion

Comments on heat exhaustion

What made you want to look up heat exhaustion? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Challenging Vocabulary Quiz Returns!

  • stylized drawing of woman pole vaulting across gap to get trophy
  • Which is a synonym of fuliginous?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!