noun
- Plural of alumina; aluminum oxide (Al₂O₃), a white powder used in ceramics, abrasives, and refractories.
Usage: technical; chemistry
Examples
- The factory produces high-purity aluminas for industrial applications.
- Different grades of aluminas are used in the manufacture of ceramics and glass.
- Aluminas serve as key raw materials in the production of aluminum metal.
- The refining process yields aluminas that meet strict quality standards.
- Researchers studied how various aluminas perform as catalyst supports.