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.

---

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

---

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.

---

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

The company just released its hydrating cream cleanser, joining other bestselling products like hand wash, face and body moisturizer, cleansing wipes and face and body oil.

From Los Angeles Times

“And it’s especially hydrating — probably 2-3 bananas per can, which you can bring anywhere and you don’t have to worry about moldy bananas. And just 50 calories — Naked’s coconut water has 60.”

From Los Angeles Times

Instead, Prof Smith says the best approach is for people to "wait it out", drink water to stay hydrated and take lozenges that encourage swallowing and "inhibit a cough" for a period of time.

From BBC

“Even if it’s hot and you’re not thirsty, you need to drink water so your body will stay hydrated,” he said.

From Los Angeles Times

Methanol helps prevent freezing and the accumulation of solid hydrates that can plug gas-compression equipment and limit pipeline flow, and it acts as a solvent and corrosion inhibitor.

From The Wall Street Journal