dehydrate

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

Definition of dehydrate

transitive verb

1a : 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

Keep scrolling for more

Other Words from dehydrate

dehydrator \ (ˌ)dē-​ˈhī-​ˌdrā-​tər How to pronounce dehydrator (audio) \ 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.
See More

Recent Examples on the Web

Ciceron also calls attention to chlorine, a sanitizing agent added to swimming pools that can strip the hair of its natural protective oils, and salt water, which can dehydrate the hair. Lauren Valenti, Vogue, "How to Get Your Best Summer Curls, According to Top Industry Pros," 28 June 2019 Airplanes dehydrate us, so keep moisturizer in your carry-on. Juliet Pennington, BostonGlobe.com, "The VIP Lounge with fitness guru Denise Austin," 27 Aug. 2019 Cod powers the local trade, and doesn’t have to travel far up to the Slippurinn kitchen, where Matt dehydrates and fries its skin into chicharron. Fortune, "Restaurant Review: Iceland’s Slippurinn Is an Ephemeral Culinary Destination," 11 Aug. 2019 Quinones told The Oregonian/OregonLive that Randolph was rolling his eyes, grunting, incoherent, sunburned and badly dehydrated. oregonlive.com, "Diabetic Oregon man, 72, who survived 5 days in desert after stranding Jeep, is feeling lucky and grateful," 3 Aug. 2019 Heat stroke happens when the body gets severely dehydrated or is unable to cool itself off in extreme temperatures. Cindy Krischer Goodman, sun-sentinel.com, "Our record heat could be dangerous — or deadly. Here’s what you need to know.," 3 July 2019 Alcohol is dehydrating, interferes with sleep, and disrupts the GI system, all of which can cause a hangover, explains Cassetty. NBC News, "What is natural wine? And is it better for you?," 11 Aug. 2019 But aside from that, coffee isn’t inherently dehydrating. Korin Miller, SELF, "Is Coffee Actually Dehydrating?," 6 Mar. 2019 The terrified dog was swollen, severely dehydrated, covered in sores and missing 90 per cent of her fur when she was found, the group wrote. Kc Baker, PEOPLE.com, "Badly Injured Dog Rescued While Being Buried Alive on Hawaii Beach by Machete-Wielding Man," 15 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dehydrate.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of dehydrate

1876, in the meaning defined at transitive sense 1a

Keep scrolling for more

Learn More about dehydrate

Statistics for dehydrate

Last Updated

11 Oct 2019

Look-up Popularity

Time Traveler for dehydrate

The first known use of dehydrate was in 1876

See more words from the same year

Keep scrolling for more

More Definitions for dehydrate

dehydrate

verb

English Language Learners Definition of dehydrate

somewhat technical
: to remove water or moisture from (something, such as food)
: to lose too much water

dehydrate

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

Kids Definition of dehydrate

1 : to take water from (as foods) dehydrate fruit
2 : to lose water or body fluids Athletes should avoid dehydrating.

Other Words from dehydrate

dehydration \ ˌdē-​ˌhī-​ˈdrā-​shən \ noun

dehydrate

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

Medical Definition of dehydrate

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

Other Words from dehydrate

dehydrator \ -​ˌdrāt-​ər How to pronounce dehydrator (audio) \ noun

Keep scrolling for more

Comments on dehydrate

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

WORD OF THE DAY

suitable to be imparted to the public

Get Word of the Day daily email!

Test Your Vocabulary

Where in the World? A Quiz

  • peter bruegel tower of babel painting
  • What language does pajama come from?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!