taxon(n = noun.group) taxonomic category, taxonomic group - animal or plant group having natural relations;
is a kind of biological group
has particulars: adapid, adapid group, omomyid, omomyid group, kingdom, subkingdom, variety, phylum, subphylum, superphylum, class, subclass, superclass, order, suborder, superorder, family, superfamily, subfamily, tribe, genus, subgenus, monotype, species, race, subspecies, form, strain, var., variant, type, group pteridospermae, group pteridospermaphyta, pteridospermae, pteridospermaphyta, centrospermae, group centrospermae, amentiferae, group amentiferae, phycomycetes, phycomycetes group

   a taxonomic group, or the name of a taxonomic grouping. [PJC]

taxon, n. (pl. taxa) any taxonomic group.

Etymology:
back-form. f. TAXONOMY