English version

retrovirus

From Longman Dictionary of Contemporary Englishretrovirusret‧ro‧vi‧rus /ˈretrəʊˌvaɪərəs $ -troʊˌvaɪrəs/ noun [countable] technical  a virus of a type that includes some cancer viruses and the AIDS virus, but that also has a quality that makes it useful for genetic engineering
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