[ suhb-groop ]

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

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

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

Origin of subgroup

First recorded in 1835–45; sub- + group

Words Nearby subgroup Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use subgroup in a sentence

British Dictionary definitions for subgroup


/ (ˈsʌbˌɡruːp) /

  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

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012