n. A group within a larger group; a group whose members are some, but not all, of the members of a larger group.
n. A subset H of a group G that is itself a group and has the same binary operation as G.
v. To divide or classify into subgroups
the GNU version of the Collaborative International Dictionary of English
n. A subdivision of a group, as of animals.
The Century Dictionary and Cyclopedia
n. Any subordinate group in classification; a subdivision of a group; especially, a division the name of which begins with sub-, as subfamily or subgenus.
n. A mathematical group forming part of another group.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. (mathematics) a subset (that is not empty) of a mathematical group
n. a distinct and often subordinate group within a group
Word Usage
"So the minimum number required to count a subgroup is a GOOD feature of the law, and if anything, that number is too low in most cases."