hydration
Americannoun
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the act or process of supplying water to oneself, another person, or a part of the body.
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the act or process of chemically hydrating something.
Explanation
Hydration is what happens when something absorbs water. If your favorite plant is brown and droopy, it may need hydration — or it may be time to buy a new plant! Hydration comes from the verb hydrate, which was originally defined as "form a hydrate" (a chemical compound that includes water), but eventually came to also mean "to restore moisture." Whenever you moisten or add water to something, including drinking a nice big cold glass of water when you're thirsty, that's hydration.
Vocabulary lists containing hydration
Physical Education - Introductory
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Physical Education - Middle School and High School
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hydr, hydro
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
St. John Bosco is using a supplement added to water called Lytening Hydration during its trip to Florida to help with cramping.
From Los Angeles Times • Aug. 23, 2025
Hydration is essential in hot weather and children should have easy access to drinking water.
From BBC • Jun. 19, 2025
Kulkea OTRmost Hydration Pack For the adventurer who dreads lugging a water bottle around on hikes, the Kulkea OTRmost Hydration Pack is the ultimate solution.
From Salon • Dec. 16, 2024
Prime Hydration will have center mat branding at WWE premium live events including WrestleMania and Money In The Bank.
From Seattle Times • Mar. 8, 2024
Hydration, we’ve been told, is the answer to just about everything.
From Slate • Jan. 18, 2024
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
