Definition of poxvirus
: any of a family (Poxviridae) of brick-shaped or ovoid double-stranded DNA viruses that have a surface lipoprotein membrane covered with tubular or globular structures and that include the vaccinia virus and the causative agents of cowpox, myxomatosis of rabbits, and smallpox
Origin of poxvirus
First Known Use: 1941
Medical Definition of poxvirus
: any of the family Poxviridae of brick-shaped or ovoid double-stranded DNA viruses
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