Subgroup

['sʌbgruːp] or ['sʌb'grʊp]

(noun.) (mathematics) a subset (that is not empty) of a mathematical group.

(noun.) a distinct and often subordinate group within a group.

Edited by Annabel--From WordNet

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

Editor: Melinda

n. any subordinate group in a classification.

Edited by Johanna