Alumina
(noun)
A white powdery substance that is the main component of alum and other aluminum compounds.
Origin:
From latin alumen ("alum") + -ina, meaning "a white powdery substance that is the main component of alum and other aluminum compounds".
Examples:
- Alumina is used as a filler and abrasive in various industrial applications.
- The alumina is used to produce aluminum metal by electrolysis.
- Alumina is used as a catalyst in the chemical industry.
- The ceramic material was made up of alumina and silicon carbide.
- Alumina is used in the production of aluminum oxide ceramics.