HEPTAD

seven, VII, sevener, heptad, septet, septenary

(noun) the cardinal number that is the sum of six and one

Source: WordNet® 3.1


Etymology

Noun

heptad (plural heptads)

A group of seven things.

(genetics) A sequence of seven bases.

Coordinate terms

• monad · duad, dyad · triad · tetrad · pentad · hexad · heptad · octad · ennead, nonad · decad, decade · hendecad · dodecad, duodecade

Anagrams

• pathed

Source: Wiktionary


Hep"tad, n. Etym: [L. heptas the number seven. Gr. "epta` seven.] (Chem.)

Definition: 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.

Source: Webster’s Unabridged Dictionary 1913 Edition



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