psittacosis psittacosaurus • psittacula · · · Info · Definitions · Synonyms · Characters · · psittacosis · · Text Latin · · Script 11 · · Length 4 · · Syllables Definitions · · · (noun) infectious disease of birds. Synonyms: parrot disease. · · Noun Definition 1 (noun) an atypical pneumonia caused by a rickettsia microorganism and transmitted to humans from infected birds. Synonyms: parrot fever, ornithosis. · · Noun Definition 2 Synonyms · · · parrot disease · · Synonym 1 parrot fever · · Synonym 2 ornithosis · · Synonym 3 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 i latin small letter i U+0069 o latin small letter o U+006F p latin small letter p U+0070 s latin small letter s U+0073 t latin small letter t U+0074