prevalence

noun

prev·​a·​lence ˈpre-və-lən(t)s How to pronounce prevalence (audio)
ˈprev-lən(t)s
1
: the quality or state of being prevalent
2
: the degree to which something is prevalent
especially : the percentage of a population that is affected with a particular disease at a given time

Examples of prevalence in a Sentence

the prevalence of rumors when hard information is withheld from the public
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.
Details and deep dives Hoenig and her colleagues analyzed the survey data each year and put out detailed reports on the prevalence of mental health problems and substance use. Rhitu Chatterjee, NPR, 29 May 2025 One year later, the Primetime Emmy Awards launched its first reality-centric category — Outstanding Reality Program — but as the prevalence of reality TV kept growing, so did the Emmy opportunities. Kristen Baldwin, EW.com, 28 May 2025 Shifting values in the Philippines Philippine society places great importance on childbearing, say researchers Anthony Luis B. Chua, Jennifer Watling Neal, and Zachary P. Neal in their 2025 study on the prevalence of child-free women in the Philippines from 1993 to 2022. Maro B. Enriquez, Christian Science Monitor, 27 May 2025 Just this month, The New York Times published an article on the prevalence of professors using ChatGPT on campuses. Michael Ashley, Forbes.com, 27 May 2025 See All Example Sentences for prevalence

Word History

First Known Use

1682, in the meaning defined at sense 1

Time Traveler
The first known use of prevalence was in 1682

Browse Nearby Words

Cite this Entry

“Prevalence.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/prevalence. Accessed 5 Jun. 2025.

Kids Definition

prevalence

noun
prev·​a·​lence ˈprev(-ə)-lən(t)s How to pronounce prevalence (audio)
1
: the state of being prevalent
2
: the degree to which something is prevalent
especially : the part of a population that is affected with a particular disease at a given time

Medical Definition

prevalence

noun
prev·​a·​lence ˈprev(-ə)-lən(t)s How to pronounce prevalence (audio)
: the percentage of a population that is affected with a particular disease at a given time compare incidence sense 2b

More from Merriam-Webster on prevalence

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!