: 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
Conçetta Ciarlo, Vogue, 20 Mar. 2026
Siewny said air conditioners may not be running yet, people aren't used to hydrating and drinking more water and schools or sports teams haven't adapted their schedules to account for high temperatures.
—Mary Kekatos, ABC News, 20 Mar. 2026
Crunch, juice, sauté, or stuff hydrating Celery stalks with favorite nut butters or soft cheeses.
—Catharine Kaufman, San Diego Union-Tribune, 20 Mar. 2026
Our Top Korean Makeup As with skin care, Korean makeup products are often formulated with hydrating ingredients (such as hyaluronic acid, mango seed butter, and more) for a healthy, lit-from-within glow.
—Sarah Han, Allure, 19 Mar. 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
This rich moisturizer features a natural vitamin C complex—potentially sourced from Kakadu plum, Irish Sea moss, and tremella mushroom extract—to brighten and hydrate skin simultaneously.
—Conçetta Ciarlo, Vogue, 20 Mar. 2026
Siewny said air conditioners may not be running yet, people aren't used to hydrating and drinking more water and schools or sports teams haven't adapted their schedules to account for high temperatures.
—Mary Kekatos, ABC News, 20 Mar. 2026
Crunch, juice, sauté, or stuff hydrating Celery stalks with favorite nut butters or soft cheeses.
—Catharine Kaufman, San Diego Union-Tribune, 20 Mar. 2026
Our Top Korean Makeup As with skin care, Korean makeup products are often formulated with hydrating ingredients (such as hyaluronic acid, mango seed butter, and more) for a healthy, lit-from-within glow.
—Sarah Han, Allure, 19 Mar. 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 26 Mar. 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
Love words? Need even more definitions?
Merriam-Webster unabridged
