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\ ˌär-(ˌ)en-ˈā 
\
\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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More Definitions for RNA
RNA
nounEnglish 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 rnaComments on RNA
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Time Traveler for RNA
The first known use of RNA was in 1942
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