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germ theory

Pathology. the theory that infectious diseases are due to the agency of germs or microorganisms.
Biology. biogenesis.
Origin of germ theory
First recorded in 1870-75 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for germ theory
Contemporary Examples
  • Until Melching's organization started its three-year training program, no one knew the basics of germ theory—or its link to HIV.

Historical Examples
British Dictionary definitions for germ theory

germ theory

the theory that all infectious diseases are caused by microorganisms
the theory that living organisms develop from other living organisms by the growth and differentiation of germ cells
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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germ theory in Medicine

germ theory n.
The doctrine holding that infectious diseases are caused by the activity of microorganisms within the body.

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