vac·ci·na·tion /ˌvæksəˈneʃən/
  接種疫苗,種痘
  vac·ci·na·tion /ˌvæksəˈneʃən/ 名詞
  Vac·ci·na·tion n.
  1. The act, art, or practice of vaccinating, or inoculating with the cowpox, in order to prevent or mitigate an attack of smallpox.  Cf. Inoculation.
  Note: ☞ In recent use, vaccination sometimes includes inoculation with any virus as a preventive measure; as, vaccination against cholera.
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  vaccination
       n 1: taking a vaccine as a precaution against contracting a
            disease [syn: inoculation]
       2: the scar left following innoculation with a vaccine