Nouns

(n)vaccinia, vaccina, variola vaccine, variola vaccinia, variola vaccinaa 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
(n)cowpox, vacciniaa viral disease of cattle causing a mild skin disease affecting the udder; formerly used to inoculate humans against smallpox