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.
Austin arrives inside the stadium by the game’s first hydration break, scanning the VIP lounge for a Coca-Cola.
From The Wall Street Journal ● Jul. 18, 2026
Plus plenty of punditry, whether on a Brooklyn balcony or in a Salford studio, glamorous celebrities, hydration break controversies and online watch parties with the likes of IShowSpeed.
From BBC ● Jul. 17, 2026
It means hydration break ads could net $250m in the US alone, prompting speculation that they will be here to stay.
From BBC ● Jul. 16, 2026
Friday and told employees she was missing, said she had a hydration pack with about a gallon of water, according to Carrie Buelna of nonprofit Friends of El Mirage, who works at the visitors center.
From Los Angeles Times ● Jul. 14, 2026
Inside, there are two sets of her lightest nylon track clothes, her Camel hydration pack, her handheld water bottle, and her thin rain jacket.
From "A Heart in a Body in the World" by Deb Caletti
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.
