an acute or chronic disease of birds, esp. birds of the parrot order, caused by a bacterium (Chlamydia psittaci): often transmitted to humans, in whom it is characterized by fever and pneumonia
Origin of psittacosisModern Latin ; from Classical Latin psittacus ; from Classical Greek psittakos, parrot + -osis
An infectious disease of parrots and related birds caused by the bacterium Chlamydia psittaci, that is communicable to humans, in whom it produces high fever, severe headache, and symptoms similar to pneumonia. Also called ornithosis, parrot fever.
Origin of psittacosisNew Latin psittacōsis : Latin psittacus, parrot (from Greek psittakos) + –osis.