From The Collaborative International Dictionary of English v.0.48:

Vaccination \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.
      [1913 Webster]

   Note: In recent use, vaccination sometimes includes
         inoculation with any virus as a preventive measure; as,
         vaccination against cholera.
         [1913 Webster]

   2. Any inoculation intended to raise immunity to a disease.
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