nucleic acid nuclei • nucleiferous · · · Info · Definitions · Characters · · nucleic acid · · Text Common · · Latin · · Scripts 12 · · Length 5 · · Syllables Definitions · · · (noun) (biochemistry) any of various macromolecules composed of nucleotide chains that are vital constituents of all living cells. Synonyms: nucleic acid. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E u latin small letter u U+0075