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.
However, the weight loss drugs are not without side effects, some of which include nausea or vomiting, diarrhea or constipation, heartburn or bloating, fatigue, dehydration and muscle loss. Saman Shafiq, USA Today, 12 Mar. 2026 Since Tarrant County Sheriff Bill Waybourn took office in 2017, more than 70 inmates have died in Tarrant County Jail from causes ranging from malnutrition and dehydration to use of force by jail staff, as was the case with Anthony Johnson, whose death was ruled a homicide. Matthew Adams, Fort Worth Star-Telegram, 11 Mar. 2026 Norovirus symptoms include dehydration, vomiting, diarrhea, dizziness, nausea, stomach pain, fever, headache and body aches. David K. Li, NBC news, 10 Mar. 2026 Some women have postpartum hair loss, acne, dehydration, sleep deprivation and complications such as postpartum preeclampsia. Kristen Rogers, CNN Money, 9 Mar. 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 16 Mar. 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
Last Updated: - Updated example sentences
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