Medical Dictionary

vaccination

noun vac·ci·na·tion \ˌvak-sə-ˈnā-shən\

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

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May 30, 2015
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