
1) Digit 2) Figure 3) Group of seven 4) Quintet plus two 5) Septet 6) Series of seven 7) Set of seven 8) Seven 9) Seven Dwarfs 10) Sevener 11) The Harry Potter books 12) The seas 13) The Seven Dwarfs 14) Water polo team
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1) Septet 2) Seven 3) Sevener
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• (n.) An atom which has a valence of seven, and which can be theoretically combined with, substituted for, or replaced by, seven monad atoms or radicals; as, iodine is a heptad in iodic acid. Also used as an adjective.
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http://thinkexist.com/dictionary/meaning/heptad/
Hep'tad noun [ Latin
heptas the number seven. Greek ..., ..., from
'epta` seven.]
(Chemistry) An atom which has a valence of seven, and which can be theoretically combined with, substituted for, or replaced by,
seven monad atoms or radicals; as, iodine is a
heptad...
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http://www.encyclo.co.uk/webster/H/34

Type: Term Pronunciation: hep′tad Definitions: 1. A septivalent chemical element or radical.
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http://www.medilexicon.com/medicaldictionary.php?t=40470
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