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.
Florida ranks as the most flu-vulnerable state heading into the 2026 season because of its low vaccination rate and large older population, according to an analysis by ConsumerAffairs. — Cindy Krischer Goodman, Sun Sentinel, 28 Oct. 2026 This vaccination routinely starts at 12-15 months of age, with a second dose between 4-6 years of age. — Katie Lockwood, STAT, 28 Oct. 2026 The Humane Society of Harford County's (HSHC's) low-cost vaccination clinic took place outside the Aberdeen Fire Department on Saturday. — CBS News, 28 Oct. 2026 Using Muse for our dog’s groomer only revealed his weight, vaccination status and previous visits. — Marty Swant, Washington Post, 27 Oct. 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

Phrases Containing vaccination

Rhymes for vaccination

See All Rhymes for vaccination

Browse Nearby Words

vaccinate
vaccination
vaccine
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Cite this Entry

“Vaccination.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vaccination. Accessed 1 Nov. 2026.

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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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