1. In Chemistry:
* Combined with water: This is the most common meaning. A hydrated substance has water molecules incorporated into its chemical structure.
* Containing water: This can refer to a substance that has absorbed water but not necessarily chemically bonded to it.
Examples:
* Hydrated copper sulfate: A blue crystalline solid where water molecules are part of the crystal structure.
* Hydrated soil: Soil that contains a significant amount of water.
2. In Biology and Medicine:
* Having adequate water in the body: This refers to the state of being properly hydrated, meaning having sufficient fluids to maintain proper bodily function.
Examples:
* Stay hydrated by drinking plenty of water.
* Dehydration can be dangerous, especially for infants and the elderly.
3. In Geology:
* Describing minerals or rocks that contain water: This often refers to minerals with water molecules incorporated into their structure, like gypsum (hydrated calcium sulfate).
Examples:
* Hydrated minerals are often found in sedimentary rocks.
4. In General Usage:
* Refreshed or revived: This is a more informal meaning, suggesting that something or someone has been re-energized after being dry or depleted.
Examples:
* A nice long shower can make you feel hydrated.
* The plants were looking much more hydrated after the rain.
The specific meaning of "hydrated" will depend on the context in which it is used.