: 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
Jenny Berg, Vogue, 22 Mar. 2025
Just add water and watch the powder transform into a bouncy mask that brightens and hydrates.
—Maria Correa, Miami Herald, 3 Mar. 2025
Veronica Fernandez-Alvarado, Sacramento Bee, 21 Mar. 2025
The second ingredient in the formula is glycerin, a humectant that pulls water from the air to keep skin hydrated for hours.
—Annie Blackman, Allure, 20 Mar. 2025
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.
Noun
Available in 38 hues that account for an impressive range of skin tones and undertones, the concealer hydrates, plumps, and brightens the undereye area with skin-loving ingredients such as hyaluronic acid, peptides, and caffeine.
—Jenny Berg, Vogue, 22 Mar. 2025
Just add water and watch the powder transform into a bouncy mask that brightens and hydrates.
—Maria Correa, Miami Herald, 3 Mar. 2025
Verb
March also got off to a wet, snowy start, with several storms hydrating the region.
—Veronica Fernandez-Alvarado, Sacramento Bee, 21 Mar. 2025
The second ingredient in the formula is glycerin, a humectant that pulls water from the air to keep skin hydrated for hours.
—Annie Blackman, Allure, 20 Mar. 2025
See All Example Sentences for hydrate
Cite this Entry
“Hydrate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrate. Accessed 28 Mar. 2025.
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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share