: a compound formed by the union of water with some other substance
hydrated; hydrating
1
: to cause to take up or combine with water or the elements of water
2
: to supply with ample fluid or moisture
hydrates and softens the skin
: to become a hydrate
Examples of hydrate in a Sentence
Verb lotions and creams that hydrate the skin Drink fluids to hydrate the body.
Recent Examples on the Web
Sarah Y. Wu, Glamour, 22 Apr. 2026 Use water or a hydrating leave-in spray to prep the hair first, making sure to work the product into your new growth before adding a curl cream or edge control to begin twisting. —Danielle James, Allure, 22 Apr. 2026 Ultra-nourishing and hydrating for dry, frizzy hair. —Bestreviews, Chicago Tribune, 20 Apr. 2026 Tons of storage, logical controls, and enough cupholders to hydrate a youth soccer league. —New Atlas, 19 Apr. 2026 See All Example Sentences for hydrate
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Verb
Liquid and cream blushes win over powder for mature skin, thanks to their hydrating formulas and dewy, flexible finishes—and this one is especially easy to apply. —Sarah Y. Wu, Glamour, 22 Apr. 2026 Use water or a hydrating leave-in spray to prep the hair first, making sure to work the product into your new growth before adding a curl cream or edge control to begin twisting. —Danielle James, Allure, 22 Apr. 2026 Ultra-nourishing and hydrating for dry, frizzy hair. —Bestreviews, Chicago Tribune, 20 Apr. 2026 Tons of storage, logical controls, and enough cupholders to hydrate a youth soccer league. —New Atlas, 19 Apr. 2026 See All Example Sentences for hydrate
Cite this Entry
“Hydrate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.grautoblog.com/dictionary/hydrate. Accessed 24 Apr. 2026.
Copy CitationKids Definition
hydrate
1 of 2 noun
hy·drate ˈhī-ˌdrāt 
: a compound formed by the union of water with some other substance
a hydrate of copper sulfate
hydrate
2 of 2 verb
hydrated; hydrating
1
: to cause to take up or combine with water or the elements of water
2
: to supply with sufficient amounts of fluid or moisture
Medical Definition
hydrate
1 of 2 noun
hy·drate ˈhī-ˌdrāt
: a compound (as Glauber's salt) formed by the union of water with some other substance
hydrate
2 of 2 verb
hydrated; hydrating
: to cause to take up or combine with water or the elements of water
: to become a hydrate
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