feline leukemia virus n a retrovirus (species Feline leukemia virus of the genus Gammaretrovirus) that is widespread in cat populations, is usu. transmitted by direct contact, and is associated with or causes a variety of conditions and symptoms including malignant lymphoma, feline leukemia, anemia, glomerulonephritis, infertility, and immunosuppression
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a retrovirus of the genus Gammaretrovirus that is found in domestic cats and can cause any of various types of contagious leukemias and lymphomas and other conditions such as anemia, glomerulonephritis, spontaneous abortion, and immunosuppression. See also feline leukemia, under leukemia.Medical dictionary. 2011.