Organic Chemical
nucleotide Audio
nu·cle·o·tide [ noo-klee-uh-tahyd, nyoo- ]
Subclass of:
Nucleic Acids, Nucleotides, and Nucleosides; Glycosides
Definitions related to nucleotides:
  • A molecule consisting of a nitrogen-containing base (adenine, guanine, thymine, or cytosine in DNA; adenine, guanine, uracil, or cytosine in RNA), a phosphate group, and a sugar (deoxyribose in DNA; ribose in RNA). DNA and RNA are polymers comprised of many nucleotides, strung together like beads in a necklace.
    NCI Dictionary of Cancer Terms
    U.S. National Cancer Institute, 2021
  • A subunit of DNA or RNA consisting of a nitrogenous base (adenine, guanine, thymine, or cytosine in DNA; adenine, guanine, uracil, or cytosine in RNA), a phosphate molecule, and a sugar molecule (deoxyribose in DNA and ribose in RNA).
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
  • Nucleoside phosphates, the building blocks of nucleic acids.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • The monomeric units from which DNA or RNA polymers are constructed. They consist of a purine or pyrimidine base, a pentose sugar, and a phosphate group. (From King & Stansfield, A Dictionary of Genetics, 4th ed)
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
  • Nucleotide, any member of a class of organic compounds in which the molecular structure comprises a nitrogen-containing unit (base) linked to a sugar and a phosphate group. The nucleotides are of great importance to living organisms, as they are the building blocks of nucleic acids, the substances...
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2020
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