vaccination

noun

vac·​ci·​na·​tion ˌvak-sə-ˈnā-shən How to pronounce vaccination (audio)
1
: the act of vaccinating
2
: the scar left by vaccinating

Examples of vaccination 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.
Guinea-Bissau is a highly endemic country for hepatitis B, where vaccination coverage lags behind global averages and roughly 60 percent of the population lives in poverty. Uzma Rentia, STAT, 27 Apr. 2026 Or another study from Denmark which found that nearly 70% of the population got COVID in a matter of months from 2021-2022, despite 90+% vaccination rates. Ian Miller Outkick, FOXNews.com, 27 Apr. 2026 Health officials said the response also drove a sharp rise in measles vaccinations, with more than 81,000 doses administered statewide - a 31% increase from 2025. Kamal Choudhury, USA Today, 27 Apr. 2026 The commission repurposed material instead, using wooden ballot boxes and blue ink leftover from a vaccination drive last year. Sam Metz, Arkansas Online, 26 Apr. 2026 See All Example Sentences for vaccination

Word History

Etymology

earlier, "inoculation with fluid from cowpox pustules," from vaccine "of cowpox" (in the phrases vaccine matter, vaccine virus) + -ation — more at vaccine

First Known Use

1891, in the meaning defined at sense 1

Time Traveler
The first known use of vaccination was in 1891

Browse Nearby Words

Cite this Entry

“Vaccination.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vaccination. Accessed 28 Apr. 2026.

Kids Definition

vaccination

noun
vac·​ci·​na·​tion ˌvak-sə-ˈnā-shən How to pronounce vaccination (audio)
1
: the act of vaccinating
2
: the scar left by vaccinating

Medical Definition

vaccination

noun
vac·​ci·​na·​tion ˌvak-sə-ˈnā-shən How to pronounce vaccination (audio)
1
: the introduction into humans or domestic animals of microorganisms that have previously been treated to make them harmless for the purpose of inducing the development of immunity
oral vaccination
vaccination against smallpox
vaccination for whooping cough
2
: the scar left by vaccinating

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