glass sponge glass soap • glass wool · · · Info · Definitions · Characters · · glass sponge · · Text Common · · Latin · · Scripts 12 · · Length 2 · · Syllables Definitions · · · (noun) a siliceous sponge (with glassy spicules) of the class Hyalospongiae. Synonyms: glass sponge. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 g latin small letter g U+0067 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 s latin small letter s U+0073