gaseous nebula gaseous • gaseousness · · · Info · Definitions · Synonyms · Characters · · gaseous nebula · · Text Common · · Latin · · Scripts 14 · · Length 5 · · Syllables Definitions · · · (noun) a cluster of stars within an intricate cloud of gas and dust. Synonyms: diffuse nebula, gaseous nebula. · · Noun Definition 1 Synonyms · · · diffuse nebula · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 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 s latin small letter s U+0073 u latin small letter u U+0075