subgroup (plural subgroups)
- A group within a larger group; a group whose members are some, but not all, of the members of a larger group.
- (group theory) A subset H of a group G that is itself a group and has the same binary operation as G.
- (group within a group): subset
- Cartan subgroup
- Fitting subgroup
- normal subgroup
- proper subgroup
- trivial subgroup
- stable subgroup
group within a larger group
group-theoretical group within a larger group