vac·​ci·​na·​tion | \ ˌvak-sə-ˈnā-shən How to pronounce vaccination (audio) \

Definition of vaccination

1 : the act of vaccinating
2 : the scar left by vaccinating

Examples of vaccination in a Sentence

Recent Examples on the Web This is an aspect of the vaccination process that was not thoroughly thought through by our health authorities. Lois K. Solomon,, "Your vaccine questions answered: Will the vaccine protect me from COVID variants?," 8 Apr. 2021 At a meeting that ran until late Wednesday, EU health ministers promised to continue discussions on vaccination planning and process. Chiara Albanese, Fortune, "Europe as divided as ever on the future rollout of the AstraZeneca COVID vaccine," 8 Apr. 2021 Behind both decisions is an assessment of the trade-off between the benefits of vaccination against Covid-19 and the risk of suffering an extremely rare side effect soon after getting a shot. Jason Douglas, WSJ, "Can the AstraZeneca Vaccine Cause Blood Clots? What You Need to Know," 8 Apr. 2021 The school district maintains vaccination data but reporting on how many staff members have received shots is incomplete after the union discouraged the reporting of such figures, the district said. Fox News, "Chicago Teachers Union asks for delay of high school reopenings, wants vaccines for students and families," 8 Apr. 2021 India is currently in its third phase of Covid-19 vaccination where those above 45 years are eligible to get the shots. Arunabh Saikia, Quartz, "Should India open up the Covid-19 vaccines for all age groups?," 8 Apr. 2021 Those whose vaccination appointments at the center were affected can reschedule by calling 833-308-1988, Hedlin said. Paige Fry,, "Tinley Park Convention Center vaccination site put on lockdown after ‘police activity,’ Cook County Health says," 8 Apr. 2021 Flu vaccination on college campuses rates typically hover between 8% and 39% — far short of the 70% recommended by the Department of Health and Human Services. Nicholas Florko, STAT, "In the Covid-19 vaccine push, no one is speaking Gen Z’s language," 8 Apr. 2021 Those under 18 should be accompanied by a parent or guardian to authorize the vaccination, Shoff said. Deborah Yetter, The Courier-Journal, "New U of L COVID-19 vaccination super-site ready to open Monday at Cardinal Stadium," 8 Apr. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'vaccination.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of vaccination

1891, in the meaning defined at sense 1

History and Etymology for vaccination

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

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Time Traveler for vaccination

Time Traveler

The first known use of vaccination was in 1891

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Statistics for vaccination

Last Updated

10 Apr 2021

Cite this Entry

“Vaccination.” Dictionary, Merriam-Webster, Accessed 17 Apr. 2021.

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More Definitions for vaccination


vac·​ci·​na·​tion | \ ˌvak-sə-ˈnā-shən How to pronounce vaccination (audio) \

Kids Definition of vaccination

: the act of vaccinating


vac·​ci·​na·​tion | \ ˌvak-sə-ˈnā-shən How to pronounce vaccination (audio) \

Medical Definition of vaccination

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

More from Merriam-Webster on vaccination

Nglish: Translation of vaccination for Spanish Speakers

Britannica English: Translation of vaccination for Arabic Speakers

Comments on vaccination

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