hydrous
adjectiveUK /ˈhaɪdrəs/
US /ˈhaɪdrəs/
Containing water.
The hydrous minerals in the rock hold a lot of water inside them.
OTHER MEANINGS
2. In chemistry, combined with water as part of a crystal structure.
Hydrous copper sulfate is bright blue, while the anhydrous form is white.
3. Having water as a solvent or medium.
The hydrous solution was easy to mix because water was the base.
4. Relating to or containing hydrogen in a chemical compound.
Some older texts use hydrous to describe compounds that include hydrogen.