any 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·vi·ral, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use retrovirus in a sentence
By targeting germ cells, these retroviruses became incorporated into human ancestral genomes over the course of millions of years and may have implications for how researchers screen and test for diseases today.Humans Are 8% Virus—How Ancient Viral DNA in Our Genome Plays a Role in Disease and Development | Aidan Burn | October 28, 2022 | Singularity Hub
Despite this, dozens more clinical trials were conducted throughout the 1990s with retroviruses and other vectors, including adenovirus, a cause of the common cold.
For example, pig organs can contain retroviruses that lie dormant in genes.What does the first successful test of a pig-to-human kidney transplant mean? | Jonathan Lambert | October 22, 2021 | Science News
At some point during evolution, the protein syncytin, which is essential for the formation of the placenta, came from a retrovirus infection.The Vast Viral World: What We Know (and Don’t Know) - Issue 99: Universality | Lauren E. Oakes | April 7, 2021 | Nautilus
He was part of the groundbreaking team that first discovered a retrovirus causes AIDS.
British Dictionary definitions for retrovirus
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
- retroviral, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for retrovirus
Any of a group of RNA viruses whose RNA is used as a template inside a host cell for the formation of DNA by means of the enzyme reverse transcriptase. The DNA thus formed is inserted into the host cell's genome. Most retroviruses can cause cancer. Retroviruses also include HIV.
- retroviral adjective
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for retrovirus
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.