From Longman Dictionary of Contemporary Englishsubgroupsub‧group /ˈsʌbɡruːp/ noun [countable] SSa separate, smaller, and sometimes less important part of a group
Examples from the Corpus
subgroup• The motivated, well-trained immigrant was not a subgroup of students but an archetype of all students.• Matters are made worse if different selectivity processes are operating for each subgroup.• More likely, it might be that we need to ensure that particular subgroups are represented in the sample.• Where a grouping is a sizeable one it becomes divided into smaller subgroups.• Workers start these subgroups for both social and work-related reasons.• Each presentation from the two subgroups was greeted by spontaneous applause.• By using subgroups, the consultants moved them toward consensus.• This randomised comparison is consistent with subgroup data from ISIS-2. 