Definition of taxon in US English:


nounPlural taxa

  • A taxonomic group of any rank, such as a species, family, or class.

    • ‘Each taxon represents a single species, except where the number of taxa is given in parentheses.’
    • ‘The extent of polyploidy in target taxa and related species was generally unknown.’
    • ‘In other schemes the phylum Arthropoda is retained and the major taxa are given subphylum or class status.’
    • ‘For this study, we were not able to obtain standard samples for these species taxa.’
    • ‘Whether these taxa should be considered species is an issue that may never be resolved.’
    taxonomic group, group, order, class, subclass, genus, species
    View synonyms


1920s: back-formation from taxonomy.