Aluminas

Part of speech: noun

Definitions

1. A class of compounds made up of aluminum oxide, commonly found in applications such as ceramics, metallurgy, and chemical processes, often valued for their utility in polishing and as fillers
2. These compounds feature aluminum oxide and serve various purposes in industries like glassmaking, abrasives, and catalysis, highlighting their versatility and functional properties
3. Compounds consisting primarily of aluminum oxide, used in manufacturing and chemical industries for their hardness and chemical stability

Etymology: "Aluminas" is simply the plural of "alumina," so it names several varieties or forms of aluminum oxide. The base word traces back to Latin "alumen," meaning alum, the astringent mineral salt that Romans used in dyeing and medicine. English took the scientific term "alumina" by combining that Latin root with the chemical suffix "-a," the pattern used for naming oxides and earths, and the plural simply follows the usual English rule for countable forms. The name therefore records an older understanding of what the substance was, rather than its modern chemistry.

Synonyms: oxides, minerals