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Definition of Alundum
1. Noun. A substance made of fused alumina. 
Definition of Alundum
1. Noun. alumina, especially a product made from fused alumina ¹
¹ Source: wiktionary.com
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1. Noun. A substance made of fused alumina. 
1. Noun. alumina, especially a product made from fused alumina ¹
¹ Source: wiktionary.com