adenine adeniform • adenitis · · · Info · Definitions · Synonyms · Characters · · adenine · · Text Latin · · Script 7 · · Length Definitions · · · (noun) (biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA. Synonyms: A. · · Noun Definition 1 Synonyms · · · a · · Synonym 1 Characters · · a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 n latin small letter n U+006E