rock wool rock-wombed • rock-worked · · · Info · Definitions · Synonyms · Characters · · rock wool · · Text Common · · Latin · · Scripts 9 · · Length Definitions · · · (noun) a light fibrous material used as an insulator. Synonyms: mineral wool. · · Noun Definition 1 Synonyms · · · rock · · Synonym 1 stone · · Synonym 2 rock candy · · Synonym 3 rock 'n' roll · · Synonym 4 rock'n'roll · · Synonym 5 rock-and-roll · · Synonym 6 rock and roll · · Synonym 7 rock music · · Synonym 8 careen · · Synonym 9 sway · · Synonym 10 tilt · · Synonym 11 shake · · Synonym 12 Characters · · space U+0020 c latin small letter c U+0063 k latin small letter k U+006B l latin small letter l U+006C o latin small letter o U+006F r latin small letter r U+0072 w latin small letter w U+0077