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pathogen

[path-uh-juh n, ‐jen] /ˈpæθ ə dʒən, ‐ˌdʒɛn/
noun
1.
any disease-producing agent, especially a virus, bacterium, or other microorganism.
Origin
1940-1945
1940-45; patho- + -gen
Related forms
antipathogen, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for pathogens
  • Conventional poultry farms use antibiotics extensively, which contributes to the rise of antibiotic-resistant pathogens.
  • By contrast, testing for pathogens deals only with cases as they become apparent in transfusion patients.
  • The altered strain was rendered avirulent, because the immune system was able to eliminate the exposed pathogens.
  • There's also the threat of pathogens that could thrive in crowded pens and escape to harm natural fish populations.
  • As such, it will contain many of the same pathogens as the human source contains.
  • If you plan to be in less-developed areas, more serious pathogens may be lurking around.
  • If pathogens can be designed by laptop, vaccines can be, too.
  • Ultraviolet radiation of the sun kills pathogens that cause diarrhea.
  • They also possess mutations in genes linked to fighting off pathogens and repairing toxin damage.
  • The canine influenza virus can cause respiratory disease by itself or along with other canine respiratory pathogens.
British Dictionary definitions for pathogens

pathogen

/ˈpæθəˌdʒɛn/
noun
1.
any agent that can cause 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 pathogens

pathogen

n.

1880, a back-formation from pathogenic.

Online Etymology Dictionary, © 2010 Douglas Harper
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pathogens in Medicine

pathogen path·o·gen (pāth'ə-jən)
n.
An agent that causes disease, especially a living microorganism such as a bacterium, virus, or fungus.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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pathogens in Science
pathogen
  (pāth'ə-jən)   
An agent that causes infection or disease, especially a microorganism, such as a bacterium or protozoan, or a virus. See Note at germ.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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pathogens in Culture
pathogen [(path-uh-juhn)]

A disease-causing agent. Microorganisms, viruses, and toxins are examples of pathogens.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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