(n.) 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 Compositae.

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