vaccinia
(noun)
noun
1. 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
Similar word(s): vaccina
Definition categories: state, infection
2. a viral disease of cattle causing a mild skin disease affecting the udder; formerly used to inoculate humans against smallpox
Similar word(s): cowpox