RNA

noun
\ ˌär-(ˌ)en-ˈā How to pronounce RNA (audio) \

Definition of RNA

: 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

First Known Use of RNA

1942, in the meaning defined above

History and Etymology for RNA

ribonucleic acid

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Cite this Entry

“RNA.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/RNA. Accessed 12 Jun. 2021.

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More Definitions for RNA

RNA

noun

English Language Learners Definition of RNA

technical : a substance in the cells of plants and animals that helps make proteins

RNA

noun
\ ˌär-ˌen-ˈā How to pronounce RNA (audio) \

Medical Definition of RNA

: 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

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