pathogen

noun

path·​o·​gen ˈpa-thə-jən How to pronounce pathogen (audio)
: a specific causative agent (such as a bacterium or virus) of disease

Examples of pathogen in a Sentence

Recent Examples on the Web
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.
Ever White™ Agapanthus is resistant to a fungal pathogen that infects foliage. Kim Toscano, Southern Living, 13 Mar. 2025 Researchers sift through the genetic material captured in each water sample, searching for infectious pathogens. Dr. Céline Gounder, CBS News, 13 Mar. 2025 Additionally, bronze or brass kitchenware was often used to prevent pathogen growth. Ed MacHa, Forbes, 5 Mar. 2025 Among the layoffs were scientists supported by the fees who monitor whether tests pick up ever-evolving pathogens, including those that cause bird flu and Covid. Christina Jewett, New York Times, 21 Feb. 2025 See All Example Sentences for pathogen

Word History

Etymology

patho- + -gen, after pathogenic, pathogenesis

First Known Use

1880, in the meaning defined above

Time Traveler
The first known use of pathogen was in 1880

Browse Nearby Words

Cite this Entry

“Pathogen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pathogen. Accessed 23 Mar. 2025.

Kids Definition

pathogen

noun
patho·​gen
ˈpath-ə-jən
: a germ (as a bacterium or virus) that causes disease

Medical Definition

pathogen

noun
patho·​gen ˈpath-ə-jən How to pronounce pathogen (audio)
: a specific causative agent (as a bacterium or virus) of disease

More from Merriam-Webster on pathogen

Last Updated: - Updated example sentences
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