vaccination


vac·ci·na·tion

noun \ˌvak-sə-ˈnā-shən\

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

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