Source : Webster's Revised Unabridged Dictionary (1913)

Vaccinate \Vac"ci*nate\, v. t. [imp. & p. p. {Vaccinated}; p.
   pr. & vb. n. {Vaccinating}.] [See {Vaccine}.]
   To inoculate with the cowpox by means of a virus, called
   vaccine, taken either directly or indirectly from cows.

Source : WordNet®

vaccinating
     n : the act of protecting against disease by introducing a
         vaccine into the body to induce immunity; "doctors
         examined the recruits but nurses did the innoculating"
         [syn: {inoculating}]