Definition of psittacosis noun from the Oxford Advanced American Dictionary

 

psittacosis

 noun
noun
NAmE//ˌsɪt̮əˈkoʊsəs//
 
[uncountable](medical)
 
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a disease of birds, especially parrots, which causes pneumonia (= a disease of the lungs) in humans
See the Oxford Advanced Learner's Dictionary entry: psittacosis