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(Elements & Compounds) a white or colourless insoluble powder occurring naturally as corundum and used in the production of aluminium and its compounds, abrasives, glass, and ceramics. Formula: Al2O3. Also called: alumina See also activated alumina
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|Noun||1.||aluminium oxide - any of various forms of aluminum oxide occurring naturally as corundum|
furnace lining, refractory - lining consisting of material with a high melting point; used to line the inside walls of a furnace
alundum - a substance made of fused alumina