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germ theory

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noun
Pathology. the theory that infectious diseases are due to the agency of germs or microorganisms.
Biology. biogenesis.
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Origin of germ theory

First recorded in 1870–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use germ theory in a sentence

British Dictionary definitions for germ theory

germ theory

noun
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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