octyl

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noun

Any of very many isomeric univalent hydrocarbon radicals, C₈H₁₇, formally derived from octane by the loss of a hydrogen atom

OriginAncient Greek ῡ̔́λη (hū́lē) ← Proto-Indo-European *swel-der.? ← English octane →
UncommonScrabble 10
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Meanings

nounoctyl (plural octyls)

plural octyls

  1. chemistryAny of very many isomeric univalent hydrocarbon radicals, C₈H₁₇, formally derived from octane by the loss of a hydrogen atom

Synonyms & antonyms

Also see
capryl

Origin

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

From octane + -yl.

Full word history & related roots →
Cite this entry
APA

octyl. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/octyl

MLA

“octyl.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/octyl. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “octyl,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/octyl.

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