cygnus atratus Cygnus • cygnus buccinator · · · Info · Definitions · Synonyms · Characters · · cygnus atratus · · Text Common · · Latin · · Scripts 14 · · Length 5 · · Syllables Definitions · · · (noun) large Australian swan having black plumage and a red bill. Synonyms: black swan, Cygnus atratus. · · Noun Definition 1 Synonyms · · · black swan · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 g latin small letter g U+0067 n latin small letter n U+006E r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075 y latin small letter y U+0079