avian leukemia-sarcoma complex

avi·an leu·ke·mi·a-sar·co·ma com·plex

(ā'vē-ăn lū-kē'mē-ă-sahr-kō'mă kom'pleks)
1. A group of transmissible virus-induced diseases of chickens; the agents are closely related viruses (avian leukosis-sarcoma virus) causing proliferation of immature erythroid, myeloid, or lymphoid cells.
2. A division of the RNA tumor viruses causing the avian leukosis-sarcoma complex of diseases.
Synonym(s): avian leukosis-sarcoma virus.