: 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, 27 Feb. 2025
Salicylic acid treats current breakouts and prevents future ones while aloe soothes and hydrates, and biodegradable exfoliating beads smooth skin.
—Celia Shatzman, Forbes, 26 Feb. 2025
Devinder Bains, Vogue, 28 Feb. 2025
It’s designed to deeply hydrate your skin, creating a healthy glow.
—Christopher Murray, Fox News, 19 Feb. 2025
See All Example Sentences for hydrate
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Noun
Formulated with skin-loving ingredients like peptides and tamanu oil, this blush blends like a dream and hydrates wherever it is placed.
—Conçetta Ciarlo, Vogue, 27 Feb. 2025
Salicylic acid treats current breakouts and prevents future ones while aloe soothes and hydrates, and biodegradable exfoliating beads smooth skin.
—Celia Shatzman, Forbes, 26 Feb. 2025
Verb
Break the fast with a quick energy hitter like dates, fruits, and a protein source like chicken, and hydrate before and during the workout.
—Devinder Bains, Vogue, 28 Feb. 2025
It’s designed to deeply hydrate your skin, creating a healthy glow.
—Christopher Murray, Fox News, 19 Feb. 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 14 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
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