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

With immunity from prior vaccination and infection will such rollbacks means that a greater proportion of the population will once again be more vulnerable to the latest circulating variants? —Bruce Y. Lee, Forbes.com, 26 May 2025

Additional studies have found that booster safety was consistent with safety reported for primary vaccination. —Mary Kekatos, ABC News, 23 May 2025

While demand for vaccinations has dropped, the Centers for Disease Control and Prevention estimates 30,000 to 50,000 adults have died from COVID-19 since October. —Lauran Neergaard, Chicago Tribune, 22 May 2025

Prioritizing vaccination for those at highest risk of a particular disease, as the FDA’s new policy would, is sensible. —Katherine J. Wu, The Atlantic, 21 May 2025

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

Phrases Containing vaccination

• anti-vaccination

Rhymes for vaccination

• abdication
• aberration
• abjuration
• abnegation
• abrogation
• acceptation
• acclamation
• acclimation
• accusation
• activation
• actuation
• acylation

Kids 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