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