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.
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 The fish themselves can also harbor certain bacteria, which can be really pathogenic for humans as well. Charles Trepany, USA Today, 22 Nov. 2025 Bird flu, also known as highly pathogenic avian influenza (HPAI), is caused by a virus that can result in serious illness and death in birds and mammals. Cara Lynn Shultz, PEOPLE, 8 Nov. 2025 The Canadian Food Inspection Agency (CFIA) had ordered the birds to be euthanized after detecting highly pathogenic avian influenza on the farm in late December 2024. Max Saltman, CNN Money, 6 Nov. 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 13 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
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!