Hydration may refer to: *

Hydrate In chemistry, a hydrate is a substance that contains water or its constituent elements. The chemical state of the water varies widely between different classes of hydrates, some of which were so labeled before their chemical structure was understo ...

, a substance that contains water *

Hydration enthalpy In chemistry, hydration energy (also hydration enthalpy) is the amount of energy released when one mole of ions undergoes solvation. Hydration energy is one component in the quantitative analysis of solvation. It is a particular special case of ...

, energy released through hydrating a substance *

Hydration reaction In chemistry, a hydration reaction is a chemical reaction in which a substance combines with water. In organic chemistry, water is added to an unsaturated substrate, which is usually an alkene or an alkyne. This type of reaction is employed indust ...

, a chemical addition reaction where a hydroxyl group and proton are added to a compound * Hydration shell, a type of solvation shell *

Hydration system A hydration system is an apparatus used in recreation and other sustained outdoor activities. It is intended to help its user carry liquid, to support the physical effort involved in the activity, without the need to use one's hands or take off ...

, an apparatus that helps its user drink enough liquid while engaged in physical activity **

Hydration pack A hydration pack or drink bag is a type of hydration system built as a backpack or waistpack containing a reservoir or "bladder" commonly made of rubber or flexible plastic. The reservoir contains a capped mouth for filling with liquid and a ho ...

, a type of hydration system composed of a carry-on pack used for hydration *

Mineral hydration In inorganic chemistry, mineral hydration is a reaction which adds water to the crystal structure of a mineral, usually creating a new mineral, commonly called a ''hydrate''. In geological terms, the process of mineral hydration is known as ''re ...

, an inorganic chemical reaction where water is added to the crystal structure of a mineral *

Drinking Drinking is the act of ingesting water or other liquids into the body through the mouth, proboscis, or elsewhere. Humans drink by swallowing, completed by peristalsis in the esophagus. The physiological processes of drinking vary widely among ...

in general, including: **

Fluid replacement Fluid replacement or fluid resuscitation is the medical practice of replenishing bodily fluid lost through sweating, bleeding, fluid shifts or other pathologic processes. Fluids can be replaced with oral rehydration therapy (drinking), intravenous ...

, the medical practice of replenishing bodily fluid **

Oral rehydration therapy Oral rehydration therapy (ORT) also officially known as Oral Rehydration Solution is a type of fluid replacement used to prevent and treat dehydration, especially due to diarrhea. It involves drinking water with modest amounts of sugar and salt ...

, hydration as a health treatment **

Management of dehydration Dehydration can occur as a result of diarrhea, vomiting, water scarcity, physical activity, and alcohol consumption. Management of dehydration (or rehydration) seeks to reverse dehydration by replenishing the lost water and electrolytes. Water and ...

, medical hydration *

Tissue hydration Tissue hydration is the process of absorbing and retaining water in biological tissues. Plants Land plants maintain adequate tissue hydration by means of an outer waterproof layer. In soft or green tissues, this is usually a waxy cuticle over th ...

, the supply and retention of adequate water in biological tissues *

Water of hydration In chemistry, water(s) of crystallization or water(s) of hydration are water molecules that are present inside crystals. Water is often incorporated in the formation of crystals from aqueous solutions. In some contexts, water of crystallization is ...

, water that occurs within crystals *

Hydration (web development) In web development, hydration or rehydration is a technique in which client-side JavaScript converts a web page that is static from the perspective of the web browser, delivered either through static rendering or server-side rendering, into a dy ...

, the preparation of web page content for user interaction. * Dough hydration, the percentage of water in a dough in relation to the amount of flour

See also