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
Recent Examples on the Web
These included the amino acid glycine and uracil, a nucleotide base in RNA.
—
Mindy Weisberger, CNN Money, 28 Mar. 2025
On the Earth, this progression likely started with simple reproductive molecules like RNA.
—ArsTechnica, 26 Mar. 2025
The local company’s technology is used to synthesize the raw materials, DNA and RNA, that scientists use to develop precision medicine, vaccines and gene therapies.
—Natallie Rocha, San Diego Union-Tribune, 25 Mar. 2025
Later, scientists could search for the RNA from a new variant and trace it back to its source.
—Matthew Hutson, The New Yorker, 20 Mar. 2025
See All Example Sentences for RNA
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Mindy Weisberger, CNN Money, 28 Mar. 2025
On the Earth, this progression likely started with simple reproductive molecules like RNA.
—ArsTechnica, 26 Mar. 2025
The local company’s technology is used to synthesize the raw materials, DNA and RNA, that scientists use to develop precision medicine, vaccines and gene therapies.
—Natallie Rocha, San Diego Union-Tribune, 25 Mar. 2025
Later, scientists could search for the RNA from a new variant and trace it back to its source.
—Matthew Hutson, The New Yorker, 20 Mar. 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 May. 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
Share