de·​hy·​dra·​tion | \ˌdē-ˌhī-ˈdrā-shən \

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

With three games in high-altitude Denver, where dehydration is an issue, the Dodgers wanted to give Wood extra rest after last Saturday’s start. Mike Digiovanna,, "Dodgers will look for relief from the start in Colorado," 1 June 2018 The fatigue combined with dehydration and exhaustion from sheer effort led my mind to play tricks on me. Haley Shapley, SELF, "How to Hike a 14,000-Foot Mountain With No Prior Experience," 17 Nov. 2018 Air pressure and dehydration on a plane can also lead people to irrational action. Aditi Shrikant, Vox, "Why there are so many viral confrontations on airplanes," 2 Nov. 2018 Nearby, Mexican Red Cross ambulances treated migrants, mostly for foot blisters and dehydration. José De Córdoba And Juan Montes, WSJ, "On the Caravan Trail, Grueling Conditions Take Toll on Migrants," 26 Oct. 2018 Basically, dryness refers to a skin type, and dehydration refers to a skin condition. Allison Duncan, Allure, "How to Tell If Your Skin Is Dry or Dehydrated, According to Experts," 22 Aug. 2018 Puri warns that chronic dehydration can also affect the strength and quality of your spinal muscles, making injuries more common and long-lasting. Holly Lebowitz Rossi, Good Housekeeping, "What to Do Right After You Throw Out Your Back," 26 July 2018 For otherwise healthy adults, the biggest worry is dehydration, the Mayo Clinic says. Sarah Jacoby, SELF, "Here Are the Symptoms of Cyclosporiasis, the Illness Linked to Recalled Vegetable Trays," 9 July 2018 One of the chief challenges for the boys’ care team will be teasing apart which health problems are due to dehydration and stress and which might be signs of infection, because the symptoms can look similar, Adalja notes. Dina Fine Maron, Scientific American, "Rescued Thai Boys Being Watched for Illnesses Caught from Cave Animals," 10 July 2018

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.

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First Known Use of dehydration

1854, in the meaning defined above

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Last Updated

7 Dec 2018

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The first known use of dehydration was in 1854

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More Definitions for dehydration


de·​hy·​dra·​tion | \ˌdē-hī-ˈdrā-shən \

Medical Definition of dehydration 

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

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More from Merriam-Webster on dehydration

Rhyming Dictionary: Words that rhyme with dehydration

Spanish Central: Translation of dehydration

Nglish: Translation of dehydration for Spanish Speakers

Britannica English: Translation of dehydration for Arabic Speakers Encyclopedia article about dehydration

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