retrovirus

UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈrɛtrəʊˌvaɪrəs/US:USA pronunciation: respellingUSA pronunciation: respelling(re′trə vīrəs, retrə vī′-)

Inflections of 'retrovirus' (nnoun: Refers to person, place, thing, quality, etc.): nplplural noun: Noun always used in plural form--for example, "jeans," "scissors.": retroviruses

WordReference Random House Unabridged Dictionary of American English © 2020
ret•ro•vi•rus  (re′trə vīrəs, retrə vī′-),USA pronunciation n., pl.  -rus•es. 
  1. Microbiologyany of a family of single-stranded RNA viruses having a helical envelope and containing an enzyme that allows for a reversal of genetic transcription, from RNA to DNA rather than the usual DNA to RNA, the newly transcribed viral DNA being incorporated into the host cell's DNA strand for the production of new RNA retroviruses: the family includes the AIDS virus and certain oncogene-carrying viruses implicated in various cancers.
ret′ro•viral, adj. 
  • retro- + virus 1975–80

Collins Concise English Dictionary © HarperCollins Publishers::
retrovirus /ˈrɛtrəʊˌvaɪrəs/ n
  1. any of several viruses whose genetic specification is encoded in RNA rather than DNA and that are able to reverse the normal flow of genetic information from DNA to RNA by transcribing RNA into DNA: many retroviruses are known to cause cancer in animals

ˈretroˌviral adj
'retrovirus' also found in these entries (note: many are not synonyms or translations):
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