adeninePronunciation: /ˈadɪniːn/Definition of adenine noun [mass noun] Biochemistry a compound which is one of the four constituent bases of nucleic acids. A purine derivative, it is paired with thymine in double-stranded DNA. Alternative name: 6-aminopurine; chemical formula: C5H5N5 Origin: late 19th century: coined in German from Greek adēn 'gland' + -ine4adenine in other Oxford dictionaries Definition of adenine in the US English dictionary
