COWPOX

cowpox. Cowpox, n. a disease from cows, like small pox, the vaccine disease

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Cow″pox′ (–pŏks′), n. (Med.) A pustular eruptive disease of the cow, which, when communicated to the human system, as by vaccination, protects from the smallpox; vaccinia; — called also kinepox, cowpock, and kinepock. Dunglison.