Hydration (noun)

1. The process of hydrating or being hydrated.
2. The state of being hydrated.
3. The addition of water to a substance to make it more liquid.

Origin:

Mid 19th century: from hydrate + -ation.

Examples:

1. Proper hydration is essential for good health.
2. The hydration of the soil is crucial for the growth of the plants.
3. A lack of hydration can lead to dehydration and other health problems.
4. The hydration of the body is essential to maintain balance in the body.
5. The hydration process of this powder is very easy, just add water.