Definition of nucleotide in US English:



  • A compound consisting of a nucleoside linked to a phosphate group. Nucleotides form the basic structural unit of nucleic acids such as DNA.

    • ‘It has been reported that lanthanides are able to bind to DNA, RNA and nucleotides in vitro.’
    • ‘This strategy is based on the attachment of some cytidine nucleotides to nascent cDNA first strands by reverse transcriptase.’
    • ‘Purine salvage pathway allows interconversion of bases, nucleosides and nucleotides.’
    • ‘All three enzymes showed a marked preference for adenine over guanine nucleotides.’
    • ‘This package contains a number of substitution models for nucleotides and RNA base pairs.’