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sub•group



Pronunciation: (sub'grOOp"), [key]
n.
1. a subordinate group; a division of a group.
2. Chem.a division of a group in the periodic table.
3. Math.a subset of a group that is closed under the group operation and in which every element has an inverse in the subset.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

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