Guanine meaning

gwä'nēn'
A purine base, C5 H5 ON5 , that is an essential constituent of both RNA and DNA.
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A crystalline purine base, C5H5N5O, contained in the nucleic acids of all tissue: it links with cytosine in the DNA structure.
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A purine base, C5 H5 ON5 , that is an essential constituent of both RNA and DNA.
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A purine base that is a component of DNA and RNA, forming a base pair with cytosine. It also occurs in guano, fish scales, sugar beets, and other natural materials. Chemical formula: C5H5ON5.
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(chemistry) A substance first obtained from guano; it is a nucleic base and pairs with cytosine in DNA and RNA.
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Origin of guanine

  • From guano in which it is found
    From American Heritage Dictionary of the English Language, 5th Edition
  • From guano + -ine.
    From Wiktionary