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

It means that is now possible to group the hard-to-classify fossils as subgroups belonging to one of the "big three," or their more primitive ancestors, Asian Homo erectus and heidelbergensis, according to Prof Ni.

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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.

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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.

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

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

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