Alundum alundum • aluniferous · · · Info · Definitions · Characters · · Alundum · · Text Latin · · Script 7 · · Length 3 · · Syllables Definitions · · · (noun) a substance made of fused alumina. Synonyms: alundum. · · Noun Definition 1 Characters · · A latin capital letter a U+0041 d latin small letter d U+0064 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E u latin small letter u U+0075