: 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 Zinc contributes to essential functions such as DNA and RNA synthesis and protein formation. Melissa Nieves, Verywell Health, 26 Sep. 2024 The largest global collection of DNA and RNA sequences — which is the subject of much of these discussions — is (take a breath) the International Nucleotide Sequence Database Collaboration. Benji Jones, Vox, 20 Sep. 2024 The ghosts of their DNA and RNA were certainly there. Gabriel Spitzer, NPR, 19 Sep. 2024 Some teams hope to use a strand of RNA to bind and partially shut off APOE4. Byjocelyn Kaiser, science.org, 12 Sep. 2024 See all Example Sentences for RNA 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'RNA.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

ribonucleic acid

First Known Use

1942, in the meaning defined above

Time Traveler
The first known use of RNA was in 1942

Dictionary Entries Near RNA

Cite this Entry

“RNA.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/RNA. Accessed 4 Oct. 2024.

Kids Definition

: 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 rna

Medical Definition

: 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 rna

More from Merriam-Webster on RNA

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