isobutyl

I1S1O1B3U1T1Y4L1

noun

The univalent hydrocarbon radical derived from isobutanol

OriginAncient Greek ῡ̔́λη (hū́lē) ← Proto-Indo-European *swel-der.? ← English isobut(anol) →
UncommonScrabble 13
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Meanings

nounisobutyl (plural isobutyls)

plural isobutyls

  1. especiallyin compoundschemistryThe univalent hydrocarbon radical derived from isobutanol

Origin

  1. Englishisobut(anol)
  2. Proto-Indo-European*swel-der.?
  3. Ancient Greekῡ̔́λη (hū́lē)
  4. Englishisobutyl

From isobut(anol) + -yl.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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