What does heptad mean

Crossword clues for heptad

heptad

Group of seven in gym detained by principal
Boss welcomes training group
Group of seven
Set of seven
Series of seven
Any group of seven
Water polo team, e.g
The seas, e.g

The Seven Dwarfs, e.g.
Snow White's Dwarfs, e.g.
The seas, e.g.
Disney's dwarfs, e.g.
The "Harry Potter" books, e.g.
The cardinal number that is the sum of six and one
Quintet plus two
Jazzy septet?

The Collaborative International Dictionary

Heptad

Heptad \Hep"tad\, n. [L. heptas the number seven. Gr. ?, ?, fr. "epta` seven.] (Chem.) 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.

Wiktionary

heptad

n. a group of seven things

WordNet

heptad

n. the cardinal number that is the sum of six and one [syn: seven, 7, VII, sevener, septet]

Usage examples of "heptad".

Has he become the leader of this Elite Septet of Unseelie, in the same fashion as his brother leads the Royal Attriod, the Chosen Heptad of mighty mortals?

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What is "heptad"