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[zoh-on-uh-sis, zoh-uh-noh-sis] /zoʊˈɒn ə sɪs, ˌzoʊ əˈnoʊ sɪs/
noun, plural zoonoses
[zoh-on-uh-seez, zoh-uh-noh-seez] /zoʊˈɒn əˌsiz, ˌzoʊ əˈnoʊ siz/ (Show IPA)
Pathology. any disease of animals communicable to humans.
1875-80; < New Latin, irregular < Greek zōio- zoo- + nósos sickness, with ending apparently conformed to -sis
Related forms
zoonotic [zoh-uh-not-ik] /ˌzoʊ əˈnɒt ɪk/ (Show IPA), adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for zoonosis


/zəʊˈɒnəsɪs; ˌzəʊəˈnəʊsɪs/
noun (pl) -ses (-siːz)
(pathol) any infection or disease that is transmitted to man from lower vertebrates
Word Origin
from zoo- + Greek nosos disease
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for zoonosis

plural zoonoses, 1876, from comb. form of Greek zoion "animal" (see zoo) + nosos "disease."

Online Etymology Dictionary, © 2010 Douglas Harper
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zoonosis in Medicine

zoonosis zo·on·o·sis (zō-ŏn'ə-sĭs, zō'ə-nō'-)
n. pl. zo·on·o·ses (-sēz')
A disease of animals, such as rabies or psittacosis, that can be transmitted to humans.

zo'o·not'ic (zō'ə-nŏt'ĭk) adj.
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 zoonosis


any infectious disease transmitted between humans and other vertebrate animals. The term was originally defined to describe a group of diseases that humans may acquire from domestic animals. This definition has been modified to include all human diseases that are acquired from or transmitted to any other vertebrate. Examples include rabies (from small mammals such as the dog, fox, bat, and rodent), tularemia (from rabbits and wild rodents), psittacosis (from birds of the parrot family), glanders (from horses), anthrax (from ruminants, horses, and swine), brucellosis (from domestic livestock), and a variety of respiratory infections from domestic animals and house pets.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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