pathogen
noun
path·o·gen
ˈpa-thə-jən 
: a specific causative agent (such as a bacterium or virus) of disease
Examples of pathogen in a Sentence
Recent Examples on the Web
Lymphoid follicles produce antibodies, such as immunoglobulin A, to neutralize pathogens.
—
Lilia Goncharova, The Conversation, 9 Mar. 2026
Unless these market dynamics change, antibiotic researchers will never be able to leverage the full benefits of AI, and physicians and patients will continue struggling mightily as pathogens evolve and new resistance patterns take hold.
—Henry Skinner, STAT, 5 Mar. 2026
This level of cleaning is most important to do when someone is ill or when surfaces may be contaminated with disease-causing pathogens.
—Caroline Lubinsky, Martha Stewart, 5 Mar. 2026
The answer came only after DNA sequencing, which identified Mycoplasma phocimorsus as the pathogen.
—Tyler Freel, Outdoor Life, 4 Mar. 2026
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Lilia Goncharova, The Conversation, 9 Mar. 2026
Unless these market dynamics change, antibiotic researchers will never be able to leverage the full benefits of AI, and physicians and patients will continue struggling mightily as pathogens evolve and new resistance patterns take hold.
—Henry Skinner, STAT, 5 Mar. 2026
This level of cleaning is most important to do when someone is ill or when surfaces may be contaminated with disease-causing pathogens.
—Caroline Lubinsky, Martha Stewart, 5 Mar. 2026
The answer came only after DNA sequencing, which identified Mycoplasma phocimorsus as the pathogen.
—Tyler Freel, Outdoor Life, 4 Mar. 2026
See All Example Sentences for pathogen
Cite this Entry
“Pathogen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pathogen. Accessed 13 Mar. 2026.
Copy CitationMedical Definition
pathogen
noun
patho·gen
ˈpath-ə-jən
: a specific causative agent (as a bacterium or virus) of disease
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