英语释义
1. any of a family (Retroviridae) of single-stranded RNA viruses that produce reverse transcriptase by means of which DNA is produced using their RNA as a template and incorporated into the genome of infected cells, that are often tumorigenic, and that include the lentiviruses (such as the HIVs) and the causative agent of Rous sarcoma
2. any of the family Retroviridae of single-stranded RNA viruses — called also RNA tumor virus