释义 |
vac·ci·na·tion \ˌ ̷ ̷ ̷ ̷ˈnāshən\ noun (-s) Etymology: French, from vaccine, adjective (from New Latin vaccinus) + -ation : the introduction into man 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 > |