1. (n.) An inorganic species or substance occurring in nature, having a definite chemical composition and usually a distinct crystalline form. Rocks, except certain glassy igneous forms, are either simple minerals or aggregates of minerals.
2. (n.) A mine.
3. (v. i.) Anything which is neither animal nor vegetable, as in the most general classification of things into three kingdoms (animal, vegetable, and mineral).
4. (a.) of or pertaining to minerals; consisting of a mineral or of minerals; as, a mineral substance.
5. (a.) Impregnated with minerals; as, mineral waters.