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

Reimbursements for up to two vaccinations given at the same time as sterilization are $15 each for a total of $30. —Stephen Underwood, Hartford Courant, 29 June 2025

He's got some basic training under his belt, shows promise with house training, and is up to date on all vaccinations, including rabies. —Alice Gibbs, MSNBC Newsweek, 28 June 2025

Overall, the rate of death seven days after mRNA vaccinations has been lower than the background rates among the general population for the most common causes of death — such as heart disease, cancer and stroke. —Michael A. Hiltzik, Mercury News, 28 June 2025

Most states are below the 95% vaccination threshold for kindergartners — the level needed to protect communities against measles outbreaks. —Laura Ungar, Los Angeles Times, 28 June 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