subgroup

[suhb-groop]

noun

1. a subordinate group; a division of a group.

2. Chemistry.,  a division of a group in the periodic table.

3. Mathematics.,  a subset of a group that is closed under the group operation and in which every element has an inverse in the subset.

subgroup

/ ˈsʌbˌɡruːp /

noun

1. a distinct and often subordinate division of a group

2. a mathematical group whose members are members of another group, both groups being subject to the same rule of combination

Word History and Origins

Origin of subgroup¹

First recorded in 1835–45; sub- + group

Example Sentences

Enrollment has dropped across all racial subgroups, with Latino students — the largest share of LAUSD’s student population — dropping by more than 114,300 students, a 28% decline, over the last 11 years.

From Los Angeles Times

The results are estimated to have a margin of error of 2 percentage points in either direction in the overall sample, and larger numbers for subgroups.

From Los Angeles Times

“If I were to pick one subgroup where you would want to have an advantage, it would be that one,” he said.

From Los Angeles Times

Fernandez said he was not in a deputy gang or problematic subgroup.

From Los Angeles Times

Kennedy has long suspected the race may also be one of the largest annual gatherings of deputies linked to the department’s notorious tattooed subgroups.

From Los Angeles Times