| xenotropic | <virology> Refers to a genetically transmitted retrovirus that cannot replicate in the host species that is harboring it but which can infect and can only replicate in the cells of a dfferent species. (11 May 1997) |
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| xenotropic virus | <virology> A virus that can be grown on cells of a species foreign to the normal host species. (18 Nov 1997) |