pathogenic

adjective

path·​o·​gen·​ic ˌpa-thə-ˈje-nik How to pronounce pathogenic (audio)
Synonyms of pathogenicnext
1
2
: causing or capable of causing disease
pathogenicity noun

Examples of pathogenic 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.
Two birds were taken to a state laboratory for testing, and the health department said preliminary results indicate the birds died from highly pathogenic avian influenza, known as bird flu. Madeline Bartos, CBS News, 11 Dec. 2025 Clermont County Public Health said two birds delivered to a state laboratory tested positive for the highly pathogenic avian influenza (HPAI), H5, known as the bird flu, according to a news release. David Ferrara, Cincinnati Enquirer, 8 Dec. 2025 Work at the facility includes projects on highly pathogenic avian influenza (bird flu), white-nose syndrome in bats, and chronic wasting disease in deer and elk. Madeline Heim, jsonline.com, 8 Dec. 2025 Their normal body temperature sits between 40 °C and 42 °C (104 °F and 108 °F), and avian influenza viruses – including the highly pathogenic strains that occasionally spill over into humans – have evolved to replicate efficiently in that heat. New Atlas, 1 Dec. 2025 See All Example Sentences for pathogenic

Word History

Etymology

patho- + -genic, after French pathogénique, German pathogenisch

First Known Use

1850, in the meaning defined at sense 1

Time Traveler
The first known use of pathogenic was in 1850

Browse Nearby Words

Cite this Entry

“Pathogenic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pathogenic. Accessed 16 Dec. 2025.

Kids Definition

pathogenic

adjective
patho·​gen·​ic
ˌpath-ə-ˈjen-ik
: causing or capable of causing disease

Medical Definition

pathogenic

adjective
patho·​gen·​ic -ˈjen-ik How to pronounce pathogenic (audio)
1
2
: causing or capable of causing disease
pathogenic microorganisms
pathogenically adverb

More from Merriam-Webster on pathogenic

Last Updated: - Updated example sentences
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