xenotropic virus

[zĕn′ə-trŏpĭk, -trōpĭk, zē′nə-]
n.
  1. An oncornavirus that does not produce disease in its natural host and replicates only in tissue culture cells derived from a different species.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.