a purine base present in tissues of all living organisms as a constituent of the nucleic acids DNA and RNA and of certain coenzymes; 6-aminopurine. Formula: C5H5N5; melting pt: 360–365°C
adenine in American English
(ˈædəˌnin; ˈædəˌnɪn)
noun
a white, crystalline purine base, C5H5N5, contained in the DNA, RNA, and ADP of all tissue: it links with thymine in the DNA structure