: 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
Madeline Merinuk,
PEOPLE,
24 June 2026
One notable upgrade is the Sheet Mask Boost Mode, specifically designed to help hydrating essences penetrate deeper into the skin.
—
Christa Joanna Lee,
Allure,
24 June 2026
Its anti-aging moisturizer also uses hyaluronic acid, jojoba oil, and peptides to complement the retinol and round out the smoothing, calming, strengthening, and hydrating benefits.
—
Claudia Fisher,
Parents,
24 June 2026
The Magic Cream is packed with powerhouse ingredients like hyaluronic acid and shea butter to deeply hydrate, and vitamins C and E to brighten and protect your skin.
—
Kyra Surgent,
InStyle,
24 June 2026
See All Example Sentences for hydrate
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Verb
The formula is so creamy and hydrating (it’s made with jojoba oil and hyaluronic acid), and the color payoff lasts all day long.
—
Madeline Merinuk,
PEOPLE,
24 June 2026
One notable upgrade is the Sheet Mask Boost Mode, specifically designed to help hydrating essences penetrate deeper into the skin.
—
Christa Joanna Lee,
Allure,
24 June 2026
Its anti-aging moisturizer also uses hyaluronic acid, jojoba oil, and peptides to complement the retinol and round out the smoothing, calming, strengthening, and hydrating benefits.
—
Claudia Fisher,
Parents,
24 June 2026
The Magic Cream is packed with powerhouse ingredients like hyaluronic acid and shea butter to deeply hydrate, and vitamins C and E to brighten and protect your skin.
—
Kyra Surgent,
InStyle,
24 June 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 25 Jun. 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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