Hydration

Hydration may refer to:


 * Hydrate, a substance that contains water
 * Hydration enthalpy, energy released through hydrating a substance
 * Hydration reaction, a chemical addition reaction where a hydroxyl group and proton are added to a compound
 * Hydration shell, a type of solvation shell
 * Hydration system, an apparatus that helps its user drink enough liquid while engaged in physical activity
 * Hydration pack, a type of hydration system composed of a carry-on pack used for hydration
 * Mineral hydration, an inorganic chemical reaction where water is added to the crystal structure of a mineral
 * Drinking in general, including:
 * Fluid replacement, the medical practice of replenishing bodily fluid
 * Oral rehydration therapy, hydration as a health treatment
 * Management of dehydration, medical hydration
 * Tissue hydration, the supply and retention of adequate water in biological tissues
 * Water of hydration, water that occurs within crystals
 * Hydration (web development), 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