ribonucleic acid
noun [ U ] chemistry, biology specialized uk/ˌraɪ.bəʊ.njuː.kliː.ɪk ˈæs.ɪd/ us/ˌraɪ.boʊ.nuː.kliː.ɪk ˈæs.ɪd/ (abbreviation RNA)
核糖核酸
an important chemical present in all living cells
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