heptyl

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noun

Any of many isomeric univalent hydrocarbon radicals, C₇H₁₅, formally derived from heptane by the loss of a hydrogen atom.

OriginAncient Greek ῡ̔́λη (hū́lē) ← Proto-Indo-European *swel-der.? ← English heptane →
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Meanings

nounheptyl (plural heptyls)

plural heptyls

  1. chemistryAny of many isomeric univalent hydrocarbon radicals, C₇H₁₅, formally derived from heptane by the loss of a hydrogen atom.

Origin

  1. Englishheptane
  2. Proto-Indo-European*swel-der.?
  3. Ancient Greekῡ̔́λη (hū́lē)
  4. Englishheptyl

From heptane + -yl.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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