dehydrate

verb

de·​hy·​drate (ˌ)dē-ˈhī-ˌdrāt How to pronounce dehydrate (audio)
dehydrated; dehydrating; dehydrates

transitive verb

1
a
: to remove bound water or hydrogen and oxygen from (a chemical compound) in the proportion in which they form water
b
: to remove water from (something, such as a food)
2
: to deprive of vitality or savor

intransitive verb

: to lose water or body fluids
dehydrator noun

Did you know?

Dehydrating food is a good way to preserve it; raisins, which are dehydrated grapes, are a good example. Dehydration through industrial processes makes it possible to keep food even longer and store it in a smaller space. Freeze-drying produces food that only needs rehydration—that is, the addition of water—to restore its original consistency. Runners, cyclists, and hikers fearful of dehydration seem to be constantly hydrating themselves nowadays, sometimes even using a shoulder pack with a tube going straight into the mouth. Dehydrate can also be used for making something "dry" or "lifeless;" thus, a dull teacher can dehydrate American history, and an unimaginative staging can dehydrate a great Shakespeare play.

Examples of dehydrate in a Sentence

Salt dehydrates the meat and keeps it from spoiling. Athletes drink lots of water so they don't dehydrate. Exercising in this heat will dehydrate you.
Recent Examples on the Web Motorists get stuck deep in the desert, dehydrated and without water. Tribune News Service, The Mercury News, 17 May 2024 People who are truly dehydrated—which is common among older adults—can experience altered mental status, hypotension, kidney failure, and other complications that may require hospitalization. Angela Haupt, TIME, 13 May 2024 The 2-week-old kitten was dehydrated, underweight, had minor cuts and had an upper respiratory infection. Helena Wegner, Sacramento Bee, 10 May 2024 Grace & Stella Moisturizing Eye Masks $15 $10 Air travel can be incredibly dehydrating to the skin, so your mom will be happy to have a pack of these moisturizing eye masks tucked into her carry-on to keep her looking and feeling fresh from takeoff to landing. Merrell Readman, Travel + Leisure, 7 May 2024 On top of that, dehydrating foodstuff—the best preservation method for perishables sent to space—removes vital nutrients. Sarah Kuta, Smithsonian Magazine, 6 May 2024 Flores said her daughter was dehydrated but OK, according to WCAU. Lauren Liebhaber, Kansas City Star, 26 Mar. 2024 He wasn't dehydrated or injured — only sunburned, Smelley said. Charlotte Phillipp, Peoplemag, 31 Mar. 2024 Nearly 38 percent were dehydrated, and 30 percent were saponified, a chemical process that produces a preservative substance known as grave wax from fats in the body. Sarah Kuta, Smithsonian Magazine, 20 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'dehydrate.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1876, in the meaning defined at transitive sense 1a

Time Traveler
The first known use of dehydrate was in 1876

Dictionary Entries Near dehydrate

Cite this Entry

“Dehydrate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dehydrate. Accessed 21 May. 2024.

Kids Definition

dehydrate

verb
de·​hy·​drate (ˈ)dē-ˈhī-ˌdrāt How to pronounce dehydrate (audio)
1
: to remove water from (as foods)
2
: to lose water or body fluids
dehydration
ˌdē-ˌhī-ˈdrā-shən
noun

Medical Definition

dehydrate

verb
de·​hy·​drate (ˈ)dē-ˈhī-ˌdrāt How to pronounce dehydrate (audio)
dehydrated; dehydrating

transitive verb

1
: to remove bound water or hydrogen and oxygen from (a chemical compound) in the proportion in which they form water
2
: to remove water from (as foods)

intransitive verb

: to lose water or body fluids
dehydrator noun

More from Merriam-Webster on dehydrate

Last Updated: - Updated example sentences
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