dehydration

noun

de·​hy·​dra·​tion ˌdē-ˌhī-ˈdrā-shən How to pronounce dehydration (audio)
: 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.
Studies have shown that moderate coffee consumption doesn’t cause dehydration in healthy adults because the amount of water in it compensates for the diuretic effects of caffeine.2 Van Dam said caffeine's diuretic effect is more apparent in people who aren’t used to consuming it. Helen Carefoot, Verywell Health, 11 July 2025 Recently, a new employee was sent to he hospital for dehydration after the air conditioning broke down. John Tuohy, IndyStar, 11 July 2025 Hydrating before, during and after alcohol use can mitigate dehydration and help reduce hangover severity. Jesse Pines, Forbes.com, 7 July 2025 Most animals die from dehydration in winter storms. Alexis Simmerman, Austin American Statesman, 2 July 2025 See All Example Sentences for dehydration

Word History

First Known Use

1854, in the meaning defined above

Time Traveler
The first known use of dehydration was in 1854

Browse Nearby Words

Cite this Entry

“Dehydration.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dehydration. Accessed 19 Jul. 2025.

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
Last Updated: - Updated example sentences
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