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

Definition categories: state, pox