de·​hy·​dra·​tion | \ ˌdē-ˌhī-ˈdrā-shən How to pronounce dehydration (audio) \

Definition of dehydration

: the process of dehydrating especially : an abnormal depletion of body fluids

Examples of dehydration in a Sentence

Recent Examples on the Web Fact: The pulp from prickly pear and various barrel cacti contains some nontoxic fluid, but its chemical content can induce diarrhea and vomiting, which hasten dehydration. Keith Mccafferty, Field & Stream, "8 Survival Myths That Could Get You Killed," 22 June 2020 More than 100 died on the way, of sunstroke, dehydration, starvation, exhaustion and traffic accidents. Gladson Dungdung, Scientific American, "India's Coronavirus Refugees Are Also Development Refugees," 20 June 2020 The county's insurer has agreed to pay $100,000 to the estate of Antonio Cowser, who died of dehydration at the jail in 2011. Bruce Vielmetti, Milwaukee Journal Sentinel, "Suit over 2011 Milwaukee County Jail death ends in $100,000 settlement," 18 June 2020 Caffeine has long been criticized for contributing to dehydration due to its diuretic effect, which triggers fluid loss. Cynthia Sass, Mph,, "6 Health Benefits of Coffee, According to a Nutritionist," 18 June 2020 They were compared with 4,321 patients who received the usual standard of care alone; that includes treatment for dehydration and pre-existing health problems, plus oxygen or a ventilator if needed. The Economist, "Light amid the gloom A cheap steroid cuts deaths from severe covid-19," 16 June 2020 Authorities also cited Golden Cross Health Care in 2012 after state investigators found the facility failed to treat and prevent wounds, offered poor psychotic drug practices and failed to note cases of dehydration. Alex Wigglesworth, Los Angeles Times, "Residents evacuated from Pasadena skilled nursing facility after state suspends license," 13 June 2020 At the public Nair Hospital, doctors have collapsed from exhaustion and dehydration, said one resident doctor there who requested anonymity. Jessie Yeung, CNN, "India's richest city should have been its most prepared for coronavirus. So why does Mumbai have the country's highest infection rate?," 11 June 2020 One method many home cooks overlook is dehydration. Paul Stephen,, "How to dehydrate fruits and vegetables at home in your oven," 6 May 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dehydration.' 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 dehydration

1854, in the meaning defined above

Keep scrolling for more

Learn More about dehydration

Time Traveler for dehydration

Time Traveler

The first known use of dehydration was in 1854

See more words from the same year

Statistics for dehydration

Last Updated

5 Jul 2020

Cite this Entry

“Dehydration.” Dictionary, Merriam-Webster, Accessed 5 Jul. 2020.

Keep scrolling for more

More Definitions for dehydration


de·​hy·​dra·​tion | \ ˌdē-hī-ˈdrā-shən How to pronounce dehydration (audio) \

Medical Definition of dehydration

: the process of dehydrating especially : an abnormal depletion of body fluids

Keep scrolling for more

Comments on dehydration

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


See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

A More Exception(al) Quiz

  • hot dog  hot dog  hot dog  hot dog cat
  • Which of the following words is not a synonym for ‘a young person’?
Spell It

Can you spell these 10 commonly misspelled words?

Dictionary Devil

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

Love words? Need even more definitions?

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