Subgroup

(n.) A subdivision of a group, as of animals.

Thesaurus Entries

adjunct, blood, bracket, branch, caste, category, clan, class, component, contingent, cross section, detachment, detail, division, dole, estate, fraction, grade, group, grouping, head, heading, installment, item, kin, label, level, order, parcel, part, particular, percentage, pigeonhole, portion, position, predicament, quadrant, quarter, quota, race, random sample, rank, rating, remainder, rubric, sample, sampling, section, sector, segment, sept, set, share, station, status, strain, stratum, subdivision, suborder, subspecies, title