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.
Flu Map Shows Highest Levels Across US Newsweek has also covered the prevalence of influenza around the country, looking at the states reporting people with the highest number of influenza-like illness symptoms. Tom Rogers, Newsweek, 21 Feb. 2025 Some initial surveys in the 1930s suggested nearly 54 percent of the population was infected, with prevalence in some areas as high as 76 percent. Ars Technica, 21 Feb. 2025 Eating nuts has been shown to help lower cholesterol and blood pressure while reducing the prevalence of diabetes.7 Seeds, like chia seeds and flaxseed, have many of the same health benefits.6 4. Chelsea Rae Bourgeois, Rdn, Health, 20 Feb. 2025 Ukraine has the highest prevalence of HIV in Europe and one of the highest outside Africa. Ivana Kottasová, CNN, 17 Feb. 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

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Cite this Entry

“Prevalence.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/prevalence. Accessed 1 Mar. 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

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