RNA
noun
: any of various nucleic acids that contain ribose and uracil as structural components and are associated with the control of cellular chemical activities compare messenger rna, ribosomal rna, transfer rna
Examples of RNA in a Sentence
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It is caused by a ribonucleic acid (RNA) virus that belongs to the alphavirus genus of the family Togaviridae.
—
Hollie Silverman, MSNBC Newsweek, 2 Aug. 2025
What Folate Does Folate is essential for DNA and RNA production and cell division.
—Amy Brownstein, Verywell Health, 31 July 2025
The Regenerating Cleanser was crafted as a treatment rather than just a shampoo, using Valmont’s signature ingredients like Triple DNA, RNA, and Glacial Spring Water.
—Meggen Harris, Forbes.com, 24 July 2025
The genes of many viruses are encoded in RNA, which was not studied during this project.
—Christian Thorsberg, Smithsonian Magazine, 23 July 2025
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Hollie Silverman, MSNBC Newsweek, 2 Aug. 2025
What Folate Does Folate is essential for DNA and RNA production and cell division.
—Amy Brownstein, Verywell Health, 31 July 2025
The Regenerating Cleanser was crafted as a treatment rather than just a shampoo, using Valmont’s signature ingredients like Triple DNA, RNA, and Glacial Spring Water.
—Meggen Harris, Forbes.com, 24 July 2025
The genes of many viruses are encoded in RNA, which was not studied during this project.
—Christian Thorsberg, Smithsonian Magazine, 23 July 2025
See All Example Sentences for RNA
Cite this Entry
“RNA.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/RNA. Accessed 6 Aug. 2025.
Copy CitationKids Definition
RNA
noun
: any of various nucleic acids that are typically found in the cytoplasm of cells, are usually composed of a single chain of nucleotides, differ from DNA in containing ribose as the five-carbon sugar instead of deoxyribose, and that function mostly in protein synthesis
called also ribonucleic acid
compare messenger rna, ribosomal rna, transfer rnaMedical Definition
RNA
noun
: any of various nucleic acids that contain ribose and uracil as structural components and are associated with the control of cellular chemical activities
called also ribonucleic acid
see messenger rna, ribosomal rna, transfer rnaLove words? Need even more definitions?
Merriam-Webster unabridged
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