Suborder

n.

1.

(Nat. Hist.) A division of an order; a group of genera of a little lower rank than an order and of greater importance than a tribe or family; as, cichoraceous plants form a suborder of Compositæ.

Noun

1.

suborder - (biology) taxonomic group that is a subdivision of an order

biotype, blood, bracket, branch, caste, category, clan, class, division, estate, family, genotype, genus, grade, group, grouping, head, heading, kin, kingdom, label, level, order, phylum, pigeonhole, position, predicament, race, rank, rating, rubric, section, sept, series, set, species, station, status, strain, stratum, subclass, subdivision, subfamily, subgenus, subgroup, subkingdom, subspecies, subtribe, superclass, superfamily, superorder, superspecies, title, tribe, variety