vaccinia virus

<molecular biology, virology> DNA viruses used in several biotechnology applications, including expression vector systems. Because they can hold quite a lot of DNA, they can be used to make more than one protein at once in a cell, which can be useful for making proteins with more than one polypeptide chain. ... (14 Nov 1997) ...
Found on http://www.mondofacto.com/facts/dictionary?vaccinia+virus

vaccinia virus

a species of orthopoxvirus that does not occur in nature and has been propagated for many years only in the laboratory for use as an active vaccine against smallpox. The present virus is derived from the original one used by Jenner, obtained from the lesions of cowpox, but the origin of the original virus remains unclear.
Found on http://www.encyclo.co.uk/local/21001

vaccinia virus

Type: Term Definitions: 1. the poxvirus (genus Orthopoxvirus) used in the immunization of people against variola (smallpox), usually causing a local reaction but sometimes generalized vaccinia, especially in children; the virus is closely related serologically to the viruses of variola and cowpox, but certain differences have been demonstrated that
Found on http://www.medilexicon.com/medicaldictionary.php?t=99086
No exact match found