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Meaning of cowpox

cow•pox

Pronunciation: (kou'poks"), [key]
— n. Vet. Pathol.
  1. an eruptive disease appearing on the teats and udders of cows, in which small pustules form that contain a virus used in the vaccination of humans against smallpox.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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