a virus of the genus Parapoxvirus that causes pseudocowpox in humans and cattle; it is closely related to orf virus and papular stomatitis virus. Synonym(s): paravaccinia virus
pseu·do·cow·pox vi·rus
(sūdō-kowpoks vīrŭs) Virus of the genus Parapoxvirus that causes pseudocowpox in humans and cattle.