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English definition of “RNA”

RNA

noun [U]     /ˌɑː.renˈeɪ/ US  /ˌɑːr.en-/ specialized
abbreviation for ribonucleic acid: an important chemical present in all living cellsAnimal biochemistryPlant biochemistry
(Definition of RNA noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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