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
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But then suddenly after a winter of heavy rain followed by hot weather, long-dormant pathogenic fungi suddenly come to life due to excess water in the root zone and bring about the tree’s demise. Joshua Siskin, Oc Register, 16 Apr. 2026 Instead of manufacturing a complete pathogen or pathogenic protein in a lab, your body’s own cells handle that step internally. Meghan Bartels, Scientific American, 27 Mar. 2026 Highly pathogenic avian influenza hit the north central Iowa flock of about 35 birds Wednesday, March 4, the department said. Donnelle Eller, Des Moines Register, 5 Mar. 2026 Lake Katherine experienced an outbreak of highly pathogenic H5N1 in February 2025. Mikayla Price, CBS News, 3 Mar. 2026 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 21 Apr. 2026.

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

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