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germ theory
noun
: a theory in medicine: infections, contagious diseases, and various other conditions result from the action of microorganisms
Examples of germ theory in a Sentence
Recent Examples on the Web
Fortunately, for the bulk of Americans who heed germ theory, pasteurization appears completely effective at deactivating the virus in milk, according to thorough testing by the FDA.
—Beth Mole, Ars Technica, 24 May 2024
The key drivers of this era were the steam engine, germ theory, electricity, and railroads.
—Kevin Drum, Foreign Affairs, 14 June 2018
At the time, however, germ theory was still in its infancy, and doctors did not yet have antibiotics at their disposal.
—Sarah Kuta, Smithsonian Magazine, 1 Feb. 2024
It’s named after inventor James Salisbury, a pioneer of germ theory and diets that helped combat digestive illnesses during the 19th century.
—Julia Levy, Southern Living, 17 Dec. 2023
See all Example Sentences for germ theory
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'germ theory.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Word History
First Known Use
1863, in the meaning defined above
Dictionary Entries Near germ theory
Cite this Entry
“Germ theory.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/germ%20theory. Accessed 4 Jul. 2024.
Kids Definition
germ theory
noun
: the theory that infectious and contagious disease results from the action of living things
Medical Definition
germ theory
noun
: a theory in medicine: infections, contagious diseases, and various other conditions (as suppurative lesions) result from the action of microorganisms
More from Merriam-Webster on germ theory
Britannica.com: Encyclopedia article about germ theory
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