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RNA virus

any virus containing RNA; retrovirus.
Origin of RNA virus
1960-65 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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RNA virus in Medicine

RNA virus n.
Any of a group of viruses whose nucleic acid core is composed of RNA, including the picornaviruses, retroviruses, and paramyxoviruses.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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RNA virus in Science
RNA virus  
A virus whose genome is composed of RNA. Retroviruses are RNA viruses. Compare DNA virus.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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