Definition of microRNA in English:

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Pronunciation: /ˌmīkrōˌärenˈā/

Entry from US English dictionary


A cellular RNA fragment that prevents the production of a particular protein by binding to and destroying the messenger RNA that would have produced the protein.
Example sentences
  • By then, scientists had proposed that plant microRNAs control protein production by glomming onto messenger RNAs, an essential intermediate in the creation of a protein.
  • In molecular biology, microRNAs are clearly one of the top two or three discoveries of the past decade.
  • Research reported in The Plant Cell shows that microRNAs control the accumulation of transcription factor proteins that regulate the expression of genes in the auxin response pathway.

For editors and proofreaders

Syllabification: mi·cro·RNA

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