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 But while air travel alone can be dehydrating, the low humidity in a plane cabin isn't the only factor that can lead to vacation dehydration. Sarah Garone,, 13 Sep. 2021 Xavier Terrell, a junior running back who took the bulk of the carries for St. Thomas after starter Anthony Hankerson left the game due to dehydration, iced the game with a 6-yard touchdown run with 1:43 left to play. Adam Lichtenstein,, 28 Aug. 2021 The trait has been associated by some pathologists and researchers with death in extreme circumstances, such as intense exercise, dehydration and high altitude. John Diedrich, Milwaukee Journal Sentinel, 23 Aug. 2021 It was being treated for dehydration and heat stroke, a soldier told Ward. Jennifer Hansler, CNN, 20 Aug. 2021 In addition to heat stroke, dehydration and exhaustion, long-term exposure to sunlight and heat can lead to skin cancer, eye damage and chronic kidney disease, and exacerbate a number of existing conditions including asthma and diabetes. Washington Post, 19 July 2021 Two firefighters were hospitalized that same day with acute renal failure because of dehydration and exhaustion experienced during the rescues, according to a statement from the union. Monica D. Spencer, The Arizona Republic, 13 July 2021 The Phoenix Fire Department still answered 36 calls for mountain rescues this week due in large part to dehydration, according to the Phoenix Captain Kenny Overton. Miguel Torres, The Arizona Republic, 8 Aug. 2021 If the fawn is left alone for too long, its ears curl up, a sign of dehydration, and flies may cloud around its uncleaned body, drawing attention. New York Times, 20 July 2021

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

Dictionary Entries Near dehydration




See More Nearby Entries 

Statistics for dehydration

Last Updated

16 Sep 2021

Cite this Entry

“Dehydration.” Dictionary, Merriam-Webster, Accessed 21 Sep. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

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


Test Your Vocabulary

Dog Words Quiz

  • shiba puppy more or less demanding cuddles
  • Which of the following animals has a dog in its etymology?
Spell It

Can you spell these 10 commonly misspelled words?


Anagram puzzles meet word search.

Love words? Need even more definitions?

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