nucleic acid
nu·cle·ic acid [nucleic acid nucleic acids] BrE [njuːˌkliːɪk ˈæsɪd] NAmE [nuːˌkliːɪk ˈæsɪd] BrE [njuːˌkleɪɪk ˈæsɪd] NAmE [nuːˌkleɪɪk ˈæsɪd] noun uncountable (chemistry) either of two acids, DNA and RNA, that are present in all living cells
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