isopropyl

I1S1O1P3R1O1P3Y4L1

noun

The univalent organic radical (CH₃)₂CH-.

OriginEnglish propyl ← French propyl- ← Ancient Greek ῡ̔́λη (hū́lē) →
Less commonScrabble 16
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Meanings

nounisopropyl (countable and uncountable, plural isopropyls)

plural isopropyls

  1. countableuncountablechemistryThe univalent organic radical (CH₃)₂CH-.

Origin

  1. Ancient Greekῐ̓́σος (ĭ́sos)
  2. Englishiso-
  3. Frenchpropionique
  4. Proto-Indo-European*swel-der.?
  5. Ancient Greekῡ̔́λη (hū́lē)
  6. Frenchpropyl-
  7. Englishpropyl
  8. Englishisopropyl

From iso- + propyl.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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