mineral wool mineral wax • miner's cat · · · Info · Definitions · Synonyms · Characters · · mineral wool · · Text Common · · Latin · · Scripts 12 · · Length 4 · · Syllables Definitions · · · (noun) a light fibrous material used as an insulator. Synonyms: mineral wool, rock wool. · · Noun Definition 1 Synonyms · · · rock wool · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 w latin small letter w U+0077