cdna c. diphtheriae • cd player · · · Info · Definitions · Synonyms · Characters · · cdna · · Text Latin · · Script 4 · · Length 1 · · Syllables Definitions · · · (noun) single-stranded DNA that is complementary to messenger RNA or DNA that has been synthesized from messenger RNA by reverse transcriptase. Synonyms: complementary DNA, cDNA. · · Noun Definition 1 Synonyms · · · complementary dna · · Synonym 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 n latin small letter n U+006E