'Vaccinia' definitions:
Definition of 'vaccinia'
(from WordNet)
noun
A local infection induced in humans by inoculation with the virus causing cowpox in order to confer resistance to smallpox; normally lasts three weeks and leaves a pitted scar [syn: vaccinia, vaccina, variola vaccine, variola vaccinia, variola vaccina]
noun
A viral disease of cattle causing a mild skin disease affecting the udder; formerly used to inoculate humans against smallpox [syn: cowpox, vaccinia]
Definition of 'Vaccinia'
From: GCIDE