heptahelical

H4E1P3T1A1H4E1L1I1C3A1L1

adjective

having seven helices; especially describing a portion of a protein having seven associated α-helices

OriginEnglish helical ← Ancient Greek ἑπτᾰ́ (heptắ) ← Proto-Hellenic *heptə́ →
Scrabble 22
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

adjectiveheptahelical (not comparable)
  1. not comparablehaving seven helices; especially describing a portion of a protein having seven associated α-helices

Origin

  1. Proto-Afroasiatic*sṗɣ?
  2. Proto-Semitic*šabʕ-bor.?
  3. Proto-Indo-European*septḿ̥
  4. Proto-Hellenic*heptə́
  5. Ancient Greekἑπτᾰ́ (heptắ)
  6. Englishhepta-
  7. Englishhelical
  8. Englishheptahelical

From hepta- + helical.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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