noun
- Plural of ceria; compounds or oxides of cerium, a rare-earth element used in catalysts, polishing powders, and ceramics.
Usage: technical; chemistry
Examples
- Cerias are widely used in automotive catalytic converters to reduce emissions.
- The laboratory synthesized several cerias with different crystal structures.
- Cerias serve as polishing agents in precision optical applications.
- Industrial processes rely on cerias for their catalytic properties.