Source : Webster's Revised Unabridged Dictionary (1913)

Vaccina \Vac*ci"na\, n. [NL.] (Med.)
   Vaccinia.

Source : WordNet®

vaccina
     n : a local infection induced in humans by innoculation with the
         virus causing cowpox in order to confer resistance to
         smallpox; normally lasts three weeks and leaves a pitted
         scar [syn: {vaccinia}, {variola vaccine}, {variola
         vaccinia}, {variola vaccina}]