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
People didn't really know about germ theory in those days.
—
Lee Habeeb, MSNBC Newsweek, 22 Oct. 2025
However, a clearer explanation of Kennedy's war on vaccines can be found in his rejection of germ theory.
—Eric Berger, ArsTechnica, 9 June 2025
Second, Louis Pasteur advanced the germ theory of disease, which postulated that microbes can cause illness.
—Bill Sullivan, The Conversation, 27 Jan. 2025
Thus, in an era when the germ theory of disease held about equal sway with theories involving the humors, folks knew tariffs were just regressive taxes.
—Andrew Leahey, Forbes, 23 Oct. 2024
See All Example Sentences for germ theory
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Lee Habeeb, MSNBC Newsweek, 22 Oct. 2025
However, a clearer explanation of Kennedy's war on vaccines can be found in his rejection of germ theory.
—Eric Berger, ArsTechnica, 9 June 2025
Second, Louis Pasteur advanced the germ theory of disease, which postulated that microbes can cause illness.
—Bill Sullivan, The Conversation, 27 Jan. 2025
Thus, in an era when the germ theory of disease held about equal sway with theories involving the humors, folks knew tariffs were just regressive taxes.
—Andrew Leahey, Forbes, 23 Oct. 2024
See All Example Sentences for germ theory
Cite this Entry
“Germ theory.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/germ%20theory. Accessed 1 Nov. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share