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Feb 13, 2012
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Dictionary


hep•tad



Pronunciation: (hep'tad), [key]
—n.
1. the number seven.
2. a group of seven.
3. Chem.an element, atom, or group having a valence of seven.

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

heptachordheptagon
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