heptade

H4E1P3T1A1D2E1

noun

A sum or group of seven.

Scrabble 13
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Meanings

nounheptade (plural heptades)

plural heptades

  1. A sum or group of seven.
  2. chemistryAn atom, radical or element having a combining power of seven.

Origin

Compare French heptade. See heptad.

Full word history & related roots →
Cite this entry
APA

heptade. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/heptade

MLA

“heptade.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/heptade. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “heptade,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/heptade.

Source: heptade on Wiktionary, CC BY-SA 4.0.