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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But staining showed no RNA or DNA molecules, indicating that the cells were definitely dead.
—
Siddhant Pusdekar, Quanta Magazine, 1 June 2026
The nanoparticle package also provides a guide RNA that directs the base-editing protein to make a specific base change and nick in a specific gene.
—Beth Mole, ArsTechnica, 28 May 2026
Shunichi Oda for Forbes Asia One listee, Hikari Okita, is researching the potential of xeno-nucleic acid (XNA), a more durable version of DNA and RNA but with similar genetic storage capabilities.
—Rana Wehbe Watson, Forbes.com, 27 May 2026
His research has helped illuminate how some of the earliest biomolecules may have arisen and how RNA could assemble, replicate and evolve.
—Noah Lyons, San Diego Union-Tribune, 26 May 2026
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Siddhant Pusdekar, Quanta Magazine, 1 June 2026
The nanoparticle package also provides a guide RNA that directs the base-editing protein to make a specific base change and nick in a specific gene.
—Beth Mole, ArsTechnica, 28 May 2026
Shunichi Oda for Forbes Asia One listee, Hikari Okita, is researching the potential of xeno-nucleic acid (XNA), a more durable version of DNA and RNA but with similar genetic storage capabilities.
—Rana Wehbe Watson, Forbes.com, 27 May 2026
His research has helped illuminate how some of the earliest biomolecules may have arisen and how RNA could assemble, replicate and evolve.
—Noah Lyons, San Diego Union-Tribune, 26 May 2026
See All Example Sentences for RNA
Cite this Entry
“RNA.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/RNA. Accessed 4 Jun. 2026.
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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
