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psittacosis

psit·ta·co·sis [ sìttə kṓssiss ]


noun 
Definition:
 
disease of birds: a contagious disease of parrots and related birds that can be transmitted to humans, sometimes causing serious lung infection. It is caused by the bacterium Chlamydia psittaci.

[Late 19th century. < Latin psittacus< Greek psittakos "parrot"]
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