• Definition for "alumina"
    • some of several forms of aluminum oxide, Al2O3,…
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  • Sentence for "alumina"
    • Alcoa is also expected to benefit…
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  • Same Context for "alumina"

alumina definition

  • noun:
    • some of several forms of aluminum oxide, Al2O3, occurring normally as corundum, in a hydrated form in bauxite, and with various impurities as ruby, sapphire, and emery, used in aluminum manufacturing as well as in abrasives, refractories, ceramics, and electrical insulation. Also known as aluminum oxide.
    • Aluminum oxide used especially in mining, product sciences and ceramics.
    • among the earths, composed of two elements of aluminium and three of oxygen, Al2O3.
    • The oxid of aluminium, Al2O3, the essential plentiful of this earths.
    • some of different forms of aluminum oxide occurring obviously as corundum
    • Any of several forms of aluminum oxide, Al2O3, happening obviously as corundum, in a hydrated form in bauxite, sufficient reason for different impurities as ruby, sapphire, and emery, used in aluminum manufacturing plus abrasives, refractories, ceramics, and electric insulation. Also called aluminum oxide.
    • Aluminum oxide utilized especially in mining, product sciences and ceramics.
    • among earths, composed of two areas of aluminum and three of oxygen, Al2O3.
    • The oxid of aluminium, Al2O3, more abundant regarding the earths.
    • any of numerous kinds of aluminum oxide occurring obviously as corundum
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