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[awr-nuh-thoh-sis] /ˌɔr nəˈθoʊ sɪs/
noun, Veterinary Pathology
psittacosis, especially of birds other than those of the parrot family.
1830-40; < New Latin; see ornith-, -osis Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for ornithosis


a disease identical to psittacosis that occurs in birds other than parrots and can be transmitted to man
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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ornithosis in Medicine

ornithosis or·ni·tho·sis (ôr'nə-thō'sĭs)
A disease of birds caused by Chlamydia psittaci and contracted by humans through contact with infected birds.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Article for ornithosis

parrot fever

infectious disease of worldwide distribution caused by a bacterial parasite (Chlamydia psittaci) and transmitted to humans from various birds. The infection has been found in about 70 different species of birds; parrots and parakeets (Psittacidae, from which the disease is named), pigeons, turkeys, ducks, and geese are the principal sources of human infection.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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