psittacosis Syllabification: (psit·ta·co·sis)Pronunciation: /ˌsitəˈkōsəs/Definition of psittacosis noun a contagious disease of birds, caused by chlamydiae and transmissible (especially from parrots) to human beings as a form of pneumonia. Origin: late 19th century: from Latin psittacus 'parrot' + -osispsittacosis in other Oxford dictionaries Definition of psittacosis in the British & World English dictionary
