RNA

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noun \ˌär-(ˌ)en-ˈā\

Definition of RNA

  1. :  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

Origin and Etymology of rna

ribonucleic acid


First Known Use: 1948


RNA Defined for English Language Learners

RNA

play
noun \ˌär-(ˌ)en-ˈā\

Definition of RNA for English Language Learners

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


Medical Dictionary

RNA

play
noun \ˌär-ˌen-ˈā\

Medical Definition of RNA

  1. :  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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