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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Hirakawa's team argue that their research is the first time that RNA has been produced in the lab without humans getting involved, although critics argue that even the act of putting all the building blocks of RNA together in a test tube is a human intervention.
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Keith Cooper, Space.com, 5 Jan. 2026
These tools support protein design, drug synthesis planning, safety testing, and RNA structure prediction.
—Aamir Khollam, Interesting Engineering, 5 Jan. 2026
Among other things, his incubator recently helped a Chinese biotech company advance the first circular RNA therapeutic to human testing in the United States — a first-in-class milestone for the technology.
—Brian Yang, STAT, 5 Jan. 2026
High-dose treatment also led to a dramatic reduction in viral RNA levels compared with placebo, a difference that was statistically significant.
—New Atlas, 29 Dec. 2025
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Keith Cooper, Space.com, 5 Jan. 2026
These tools support protein design, drug synthesis planning, safety testing, and RNA structure prediction.
—Aamir Khollam, Interesting Engineering, 5 Jan. 2026
Among other things, his incubator recently helped a Chinese biotech company advance the first circular RNA therapeutic to human testing in the United States — a first-in-class milestone for the technology.
—Brian Yang, STAT, 5 Jan. 2026
High-dose treatment also led to a dramatic reduction in viral RNA levels compared with placebo, a difference that was statistically significant.
—New Atlas, 29 Dec. 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 12 Jan. 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
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