messenger RNA
noun [ U ] biology specialized uk/ˌmes.ɪn.dʒər ɑː.r.enˈeɪ/ us/ˌmes.ɪn.dʒɚ ɑːr.enˈeɪ/ (abbreviation mRNA)
信使RNA(一种活体细胞中的化学物质)
a type of RNA (= a chemical in living cells) that provides the information needed to make proteins