RNA

noun

\ ˌär-(ˌ)en-ˈā

How to pronounce RNA (audio)

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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

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RNA interference

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Time Traveler for RNA

The first known use of RNA was in 1942

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RNA

noun

English Language Learners Definition of RNA

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

See the full definition for RNA in the English Language Learners Dictionary

RNA

noun

\ ˌär-ˌen-ˈā

\

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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