vaccination
noun
vac·ci·na·tion
ˌvak-sə-ˈnā-shən 
1
: the act of vaccinating
2
: the scar left by vaccinating
Examples of vaccination in a Sentence
Recent Examples on the Web
She’s microchipped and up to date on vaccinations.
—
Maryanne Dell, Oc Register, 14 Feb. 2026
Now, only one dose is recommended; the guidance had been a two- or three-dose series depending on age at initial vaccination.
—Sara Moniuszko, USA Today, 13 Feb. 2026
Vaccine funding axed Weeks after Kennedy took over the federal health department, the CDC pulled back $11 billion in COVID-era grants that local health departments were using to fund vaccination programs, among other initiatives.
—Amanda Seitz, NPR, 13 Feb. 2026
Parents should feel encouraged to ask questions about the risks and benefits of vaccination; that’s part of responsible decision-making.
—Josh M. Shepherd, The Orlando Sentinel, 13 Feb. 2026
See All Example Sentences for vaccination
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Maryanne Dell, Oc Register, 14 Feb. 2026
Now, only one dose is recommended; the guidance had been a two- or three-dose series depending on age at initial vaccination.
—Sara Moniuszko, USA Today, 13 Feb. 2026
Vaccine funding axed Weeks after Kennedy took over the federal health department, the CDC pulled back $11 billion in COVID-era grants that local health departments were using to fund vaccination programs, among other initiatives.
—Amanda Seitz, NPR, 13 Feb. 2026
Parents should feel encouraged to ask questions about the risks and benefits of vaccination; that’s part of responsible decision-making.
—Josh M. Shepherd, The Orlando Sentinel, 13 Feb. 2026
See All Example Sentences for vaccination
Cite this Entry
“Vaccination.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vaccination. Accessed 18 Feb. 2026.
Copy CitationKids Definition
vaccination
noun
vac·ci·na·tion
ˌvak-sə-ˈnā-shən
1
: the act of vaccinating
2
: the scar left by vaccinating
Medical Definition
vaccination
noun
vac·ci·na·tion
ˌvak-sə-ˈnā-shən
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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