dehydration

noun

de·​hy·​dra·​tion ˌdē-ˌhī-ˈdrā-shən How to pronounce dehydration (audio)
Synonyms of dehydrationnext
: the process of dehydrating
especially : an abnormal depletion of body fluids

Examples of dehydration in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
This may lead to dehydration, which affects how medications are absorbed in the gastrointestinal tract. Carrie Madormo, Verywell Health, 3 June 2026 According to Mochi Health, dehydration along with changes in diet and appetite can make the problem worse. Samantha Agate, Fort Worth Star-Telegram, 2 June 2026 GoodRx notes that combining Ozempic with long-term or heavy alcohol use may raise certain risks, especially if dehydration sets in from nausea or vomiting. Samantha Agate, Kansas City Star, 1 June 2026 The undone, tousled, and touchable look is created through mineral-rich sea salt for grit without dehydration, while microalgae doubles down on hydration to keep lengths soft. Conçetta Ciarlo, Vogue, 1 June 2026 See All Example Sentences for dehydration

Word History

First Known Use

1840, in the meaning defined above

Time Traveler
The first known use of dehydration was in 1840

Browse Nearby Words

Cite this Entry

“Dehydration.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dehydration. Accessed 9 Jun. 2026.

Medical Definition

dehydration

noun
de·​hy·​dra·​tion ˌdē-hī-ˈdrā-shən How to pronounce dehydration (audio)
: the process of dehydrating
especially : an abnormal depletion of body fluids
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