Synonyms and related words :
adjunct, component, contingent, crescent, cross section, detachment, detail, district, division, dole, fraction, half circle, hemicycle, installment, item, parcel, part, particular, percentage, portion, precinct, quadrant, quarter, quota, random sample, remainder, sample, sampling, section, segment, semicircle, sextant, share, subdivision, subgroup, subspecies