RETROVIRUS

n. virus containing a single strand of RNA which is translated into DNA and inserted into a host cell at the time of infection (many viruses that cause cancer and the AIDS virus are retroviruses)

A retrovirus is any virus belonging to the viral family Retroviridae. They are enveloped viruses possessing a RNA genome, and replicate via a DNA intermediate. Retroviruses rely on the enzyme reverse transcriptase to perform the reverse transcription of its genome from RNA into DNA, which can then be integrated into the host's genome with an integrase enzyme. The virus then replicates as part of the cell's DNA.
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Retrovirus /ret·ro·vi·rus/ a large group of RNA viruses that includes the leukoviruses and lentiviruses; so called because they carry reverse [more]Retrovirus - Community and Resources

Noun
1. any of a group of viruses that contain two single-strand linear RNA molecules per virion and reverse transcriptase (RNA to DNA)
(hypernym) animal virus
(hyponym) human T-cell leukemia virus-1, HTLV-1

n. retrovirus, virus containing a single strand of RNA which is translated into DNA and inserted into a host cell at the time of infection (many viruses that cause cancer and the AIDS virus are retroviruses)