RNA tumor viruses

RNA tu·mor vi·rus·es

RNA viruses of the family Retroviridae that cause tumors.

RNA tu·mor vi·rus·es

(tū'mŏr vī'rŭs-ĕz)
Viruses of the subfamily Oncovirinae.
References in periodicals archive ?
His graduate work on oncogene activation by slowly transforming RNA tumor viruses had major impact on the field.
Phenotypic mixing between vesicular stomatitis virus and avian RNA tumor viruses.
Throughout the 1970's and 1980's he focused on RNA tumor viruses and did extensive work on interferon in both animal and human systems.