The Open Dictionary

RNA

noun

UK/ˌɑː.renˈeɪ/
US/ˌɑːr.enˈeɪ/

Definitions of RNA noun

  1. Uncountablechemistry

    An abbreviation for ribonucleic acid, which is a crucial chemical compound found in all living cells.

    • Messenger RNA carries genetic information from DNA to the protein synthesis machinery of the cell.

    • Scientists are studying the roles of different types of RNA in cellular functions.

    • RNA plays a key role in the regulation of gene expression.