subgroup

A smaller group made up of some members of a larger group.

• Each subgroup chose a leader.
• We compared the results for different age subgroups.
• A small subgroup of students needed extra help.

How to use it: a subgroup of something (This subgroup of patients responded well.)

Similar words: subset

Common phrases: subgroup of something, patient subgroup, small subgroup

A set within a mathematical group that also forms a group using the same operation.

• This subgroup contains the identity element.
• The proof uses a normal subgroup of the original group.
• Every subgroup must contain the inverse of each of its elements.

How to use it: a subgroup of a group (We identified a subgroup of the finite group.)

Common phrases: normal subgroup, cyclic subgroup, subgroup of something

To divide people or things into smaller groups within a larger group.

• We subgroup the patients by age.
• The researchers subgrouped participants according to their symptoms.
• You can subgroup the data before comparing the results.

How to use it: subgroup something by something (We subgrouped the results by region.); subgroup something into something (The team subgrouped participants into three age categories.)

Similar words: subdivide, classify

Common phrases: subgroup by age, subgroup the participants, subgroup the data