9 Grammatical Pitfalls


[path-uh-juh n, ‐jen] /ˈpæθ ə dʒən, ‐ˌdʒɛn/
any disease-producing agent, especially a virus, bacterium, or other microorganism.
Origin of pathogen
1940-45; patho- + -gen
Related forms
antipathogen, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for pathogen
  • The mystery is what kind of pathogen or disease-causing organism could behave in such a pattern.
  • Research interests may include but are not limited to host-vector pathogen relationships and transmission biology.
  • As hoped, this compound augmented the potency of antibiotics in mice infected with this pathogen.
  • Close contact between two species represents an opportunity for a pathogen to expand its horizons and possibilities.
  • The pathogen could spread to humans who ate contaminated beef.
  • The pathogen makes its presence known to humans through crimson pustules on the plant's stems and leaves.
  • Despite this, there is no federal requirement for grinders to test their ingredients for the pathogen.
  • The lack of it lowers the threshold for responding to a foreign protein that might come from a pathogen.
  • Each of them reflects the action of a pathogen that can cross to people from other species.
  • Heat can also influence the how a pathogen is spread.
British Dictionary definitions for pathogen


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 pathogen

1880, a back-formation from pathogenic.

Online Etymology Dictionary, © 2010 Douglas Harper
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pathogen in Medicine

pathogen path·o·gen (pāth'ə-jən)
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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pathogen in Science
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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pathogen 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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