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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These candidates, expected to seek approval by 2026, use a special technology designed to deliver RNA therapeutics directly to muscle tissue.
—
Reuters, USA Today, 26 Oct. 2025
Avidity specializes in developing an innovative class of ribonucleic acid (RNA) therapeutics called antibody oligonucleotide conjugates.
—Liz Napolitano, CNBC, 26 Oct. 2025
The researchers treated the lung cells with CSWE and its main compound, 1,8-cineole, then exposed them to molecules that mimic viral DNA and RNA, to simulate an infection.
—New Atlas, 25 Oct. 2025
Despite its toxicity to life now, hydrogen cyanide in particular is one of the building blocks of amino acids, which are used to construct proteins, and nucleobases in RNA and DNA.
—Keith Cooper, Space.com, 21 Oct. 2025
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Reuters, USA Today, 26 Oct. 2025
Avidity specializes in developing an innovative class of ribonucleic acid (RNA) therapeutics called antibody oligonucleotide conjugates.
—Liz Napolitano, CNBC, 26 Oct. 2025
The researchers treated the lung cells with CSWE and its main compound, 1,8-cineole, then exposed them to molecules that mimic viral DNA and RNA, to simulate an infection.
—New Atlas, 25 Oct. 2025
Despite its toxicity to life now, hydrogen cyanide in particular is one of the building blocks of amino acids, which are used to construct proteins, and nucleobases in RNA and DNA.
—Keith Cooper, Space.com, 21 Oct. 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 2 Nov. 2025.
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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
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