adenine

A1D2E1N1I1N1E1
/ˈæ.dəˌniːn//ˈæ.dɪˌnɪn/

noun

A base, C₅H₅N₅, found in certain glands and tissues, which pairs with thymine in DNA and uracil in RNA.

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Meanings

nounadenine (countable and uncountable, plural adenines)

plural adenines

  1. countableuncountablebiochemistryA base, C₅H₅N₅, found in certain glands and tissues, which pairs with thymine in DNA and uracil in RNA.

    One of these labels is ethenoadenine, which is obtained by chemical modification of adenine.

    2002, Nikolai L. Vekshin, Photonics of Biopolymers, page 115
    3 more examples

    There are two genes in the adenine biosynthetic pathway of yeast (ADE1 and ADE2) that, apart from producing an absolute requirement for adenine when mutant, also produce a change in colony color.

    2006, David Markie, “1: Markers, Selection, and Media in Yeast Artificial Chromosome Cloning”, in Alasdair MacKenzie, editor, YAC Protocols, 2nd edition, page 2

    The HCN pentamer, adenine (a constituent of DNA, RNA and many coenzymes), is one of the most abundant biochemical molecules.

    2010, Debjani Roy, Rogué Schleyer, “6: Chemical Origin of Life: How do Five HCN Molecules Combine to form Adenine under Prebiotic and Interstellar Conditions”, in Chérif F. Matta, editor, Quantum Biochemistry, page 202

    Sinclair also takes 1 gram of NMN, or nicotinamide mononucleotide, which in the body turns into NAD+, or nicotinamide adenine dinucleotide.

    2022 June 2, Sandee LaMotte, “The ‘Benjamin Button’ effect: Scientists can reverse aging in mice. The goal is to do the same for humans”, in CNN

Synonyms & antonyms

noun(biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA

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Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Ancient Greekᾰ̓δήν (ădḗn)
  2. GermanAdenin
  3. Englishadenine

From German Adenin, from Ancient Greek ἀδήν (adḗn, “gland”). By surface analysis, aden- + -ine. It was named in 1885 by the German biochemist Albrecht Kossel, in reference to the pancreas (a specific gland) from which Kossel's sample had been extracted.

Full word history & related roots →

Translations

Catalan adenina
  • adeninabase that pairs with thymine or uracil
Chinese Mandarin 腺嘌呤
  • 腺嘌呤 (xiànpiàolìng, xiànpiāolíng)base that pairs with thymine or uracil
Czech adenin
  • adeninbase that pairs with thymine or uracil
Esperanto adenino
  • adeninobase that pairs with thymine or uracil
Finnish adeniini
  • adeniinibase that pairs with thymine or uracil
French adénine
  • adéninebase that pairs with thymine or uracil
German Adenin
  • Adeninbase that pairs with thymine or uracil
Hindi ग्रन्थ्यूतिनी
  • ग्रन्थ्यूतिनी (granthyūtinī)base that pairs with thymine or uracil
Hungarian adenin
  • adeninbase that pairs with thymine or uracil
Icelandic adenín
  • adenínbase that pairs with thymine or uracil
Irish adainín
  • adainínbase that pairs with thymine or uracil
Italian adenina
  • adeninabase that pairs with thymine or uracil
Japanese アデニン
  • アデニン (adenin)base that pairs with thymine or uracil
Latvian adenīns
  • adenīnsbase that pairs with thymine or uracil
Polish adenina
  • adeninabase that pairs with thymine or uracil
Portuguese adenina
  • adeninabase that pairs with thymine or uracil
Romanian adenină
  • adeninăbase that pairs with thymine or uracil
Russian адени́н
  • адени́н (adɛnín)base that pairs with thymine or uracil
Spanish adenina
  • adeninabase that pairs with thymine or uracil
Turkish adenin
  • adeninbase that pairs with thymine or uracil

Rhymes & wordplay

Anagrams

Cite this entry
APA

adenine. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/adenine

MLA

“adenine.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/adenine. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “adenine,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/adenine.

Source: adenine on Wiktionary, CC BY-SA 4.0.