: 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
Jillian Kubala, Health, 6 May 2026
Transfer to a bowl and refrigerate for 30 minutes to hydrate the dough and chill the butter.
—Carole Kotkin, Miami Herald, 6 May 2026
Formulated with mature skin in mind, the primer is packed with hydrating ingredients like shea butter, vitamin E, squalane, and aloe vera.
—Isabel Garcia, PEOPLE, 4 May 2026
Ashley recommends the Dippity-Do Girls with Curls Curl Defining Cream for soft definition, while Gutterman recommends DevaCurl SuperMousse for hydrating volume and hold.
—Catharine Malzahn, Glamour, 4 May 2026
See All Example Sentences for hydrate
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Verb
Staying hydrated and exercising regularly helps keep digestion moving and reduces the risk of issues like constipation and colon cancer.
—Jillian Kubala, Health, 6 May 2026
Transfer to a bowl and refrigerate for 30 minutes to hydrate the dough and chill the butter.
—Carole Kotkin, Miami Herald, 6 May 2026
Formulated with mature skin in mind, the primer is packed with hydrating ingredients like shea butter, vitamin E, squalane, and aloe vera.
—Isabel Garcia, PEOPLE, 4 May 2026
Ashley recommends the Dippity-Do Girls with Curls Curl Defining Cream for soft definition, while Gutterman recommends DevaCurl SuperMousse for hydrating volume and hold.
—Catharine Malzahn, Glamour, 4 May 2026
See All Example Sentences for hydrate
Cite this Entry
“Hydrate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrate. Accessed 8 May. 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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