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adenine Line breaks: ad¦en|ine
Pronunciation: /ˈadɪniːn/

Definition of adenine in English:


[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
Example sentences
  • There are four types of nucleotides in DNA, each containing one of four bases - adenine, guanine, cytosine, or thymine.
  • Causes and effects The structure of thalidomide is similar to that of the DNA purine bases adenine and guanine.
  • The strands consist of sugar and phosphate groups, the sugars being attached to a base - adenine, thymine, guanine, or cytosine.


Late 19th century: coined in German from Greek adēn 'gland' + -ine4.

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