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

An all-in-one product, the Pure Biology Total Eye ($30.40; targets puffiness, dark circles, fine lines and dehydration using a unique combination of ingredients. Nikhita Mahtani, CNN Underscored, "Want to fight dark circles? Look for these ingredients in your next eye cream," 10 Aug. 2019 Even mild dehydration can interfere with a person’s mood or ability to concentrate. Markham Heid, Time, "Why Drinking Water All Day Long Is Not the Best Way to Stay Hydrated," 9 Aug. 2019 The goal here is to minimize dehydration—which can cause low energy and muscle cramps or spasms—without drinking too much water, which isn't easy to do but can be dangerous. SELF, "What to Eat Before and After a Workout, According to a Registered Dietitian," 7 Aug. 2019 Researchers tracked temperature, heart rate, blood pressure, discomfort and risk of dehydration (sweat rate). Leila Sloman, Scientific American, "Fans May Be Okay for Muggy Days—but Avoid Them in Extreme Dry Heat," 5 Aug. 2019 Pro tip: Drink a tall glass of agua before your morning brew to fend off dehydration. Samantha Lauriello,, "9 Causes of Smelly Urine—and What to Do About It," 31 July 2019 Dry nose can arise from allergens, sunburn or dehydration. Heloise, Washington Post, "Hints From Heloise: Dogs in the heat and Pet of the Week," 20 July 2019 She was found dead of dehydration the next morning. Heather Vogell, ProPublica, "Maryland Sues Notorious For-Profit Group Homes. The Company Was the Subject of ProPublica Investigation.," 12 July 2019 That’s why park rangers, who encounter lots of park visitors suffering from heat exhaustion and dehydration, want to share some tips to keep hikers safe during the hot summer months. 1. Pam Leblanc, The Know, "Five tips to help you keep your cool while hiking on a hot summer day," 10 July 2019

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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Statistics for dehydration

Last Updated

17 Aug 2019

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Time Traveler for dehydration

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 How to pronounce dehydration (audio) \

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

Comments on dehydration

What made you want to look up dehydration? Please tell us where you read or heard it (including the quote, if possible).


a haphazard or makeshift solution

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