hydrate

[ hahy-dreyt ]

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.

verb (used with or without object)

, hy·drat·ed, hy·drat·ing.

1. to combine chemically with water.

hydrate

/ 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

verb

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

hydrate

/ hī′drāt′ /

Noun

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

Verb

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.

Derived Forms

• hyˈdration, noun
• ˈhydrator, noun

Other Words From

• hy·dration noun

Word History and Origins

Origin of hydrate¹

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

Word History and Origins

Origin of hydrate¹

C19: from hydro- + -ate ¹

Example Sentences

Also, bring buckets half full of water in your car, to keep the flowers hydrated during your drive home.

From Los Angeles Times

Dermatologists say that scalp treatments promote circulation and detoxify, as well as calm and hydrate skin, all of which can help prevent dandruff, itchiness, dryness and inflammation.

From Los Angeles Times

The three basics, they say, are appropriate for any age: a gentle cleanser, a hydrating moisturizer and a good sunscreen.

From Los Angeles Times

He said he is working hard with Central Valley farmers to treat the animals — largely by making sure the cattle are adequately hydrated.

From Los Angeles Times

“I try to stay inside and stay hydrated.”

From Los Angeles Times