hydrate

American  

[hahy-dreyt] / ˈhaɪ dreɪt /

noun

1. any of a class of compounds containing chemically combined water. In the case of some hydrates, as washing soda, Na 2 CO 3 ⋅10H 2 O, the water is loosely held and is easily lost on heating; in others, as sulfuric acid, SO 3 ⋅H 2 O, or H 2 SO 4 , it is strongly held as water of constitution.

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verb (used with or without object)

hydrated, hydrating

1. to combine chemically with water.

hydrate British  

/ ˈhaɪdreɪt /

noun

1. a chemical compound containing water that is chemically combined with a substance and can usually be expelled without changing the constitution of the substance

2. a chemical compound that can dissociate reversibly into water and another compound. For example sulphuric acid (H 2 SO 4 ) dissociates into sulphur trioxide (SO 3 ) and water (H 2 O)

3. (not in technical usage) a chemical compound, such as a carbohydrate, that contains hydrogen and oxygen atoms in the ratio two to one

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verb

1. to undergo or cause to undergo treatment or impregnation with water

hydrate Scientific  

/ hī′drāt′ /

1. A compound produced by combining a substance chemically with water. Many minerals and crystalline substances are hydrates.

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1. To combine a compound with water, especially to form a hydrate.

2. To supply water to a person in order to restore or maintain a balance of fluids.

Other Word Forms

• hydration noun
• hydrator noun

Etymology

Origin of hydrate

First recorded in 1795–1805; hydr- ¹ + -ate ²

Example Sentences

If you're going to use an eye cream, Tina recommends looking for one with hydrating ingredients alongside the caffeine as that supports skin quality.

From BBC

Dad gives me a look, but it’s not like Aunt Melissa will kick us out because I need to hydrate.

From Literature

“The water’s falling on the outside of your body, not inside. We need to keep ourselves hydrated.”

From Literature

Anisimova, beaten finalist last year at Wimbledon and the US Open, said keeping hydrated the day before and on match day was crucial.

From Barron's

The world’s endowment of hydrocarbons is all but limitless, including unimaginable quantities of methane hydrates, not to mention that hydrocarbons can also be grown agriculturally.

From The Wall Street Journal