isobutene

I1S1O1B3U1T1E1N1E1

noun

The unsaturated hydrocarbon methylpropene, (CH₃)₂C=CH₂; used in the manufacture of polybutene and butyl rubber.

Scrabble 11

Meanings

nounisobutene (countable and uncountable, plural isobutenes)

plural isobutenes

  1. countableuncountablechemistryThe unsaturated hydrocarbon methylpropene, (CH₃)₂C=CH₂; used in the manufacture of polybutene and butyl rubber.

    Synonyms: isobutylene, methylpropene

Synonyms & antonyms

nounThe unsaturated hydrocarbon methylpropene, (CH₃)₂C=CH₂; used in the manufacture of polybutene and butyl rubber.

Origin

  1. Ancient Greekῐ̓́σος (ĭ́sos)
  2. Englishiso-
  3. Proto-Indo-European*gʷṓws
  4. Proto-Hellenic*gʷous
  5. Ancient Greekβοῦς (boûs)
  6. Proto-Indo-European*tewh₂-
  7. Proto-Indo-European*tuh₂rós
  8. Proto-Hellenic*tūrós
  9. Ancient Greekτῡρός (tūrós)
  10. Ancient Greekβούτῡρος (boútūros)
  11. Englishbut-
  12. Englishbutene
  13. Englishisobutene

From iso- + butene.

Full word history & related roots →

Translations

Catalan isobutè, isobutilè
  • isobutèunsaturated hydrocarbon methylpropene
  • isobutilèunsaturated hydrocarbon methylpropene
Finnish isobutyleeni, isobuteeni
  • isobutyleeniunsaturated hydrocarbon methylpropene
  • isobuteeniunsaturated hydrocarbon methylpropene
French isobutène, isobutylène
  • isobutèneunsaturated hydrocarbon methylpropene
  • isobutylèneunsaturated hydrocarbon methylpropene
  • méthylpropèneunsaturated hydrocarbon methylpropene
  • 2-méthylpropèneunsaturated hydrocarbon methylpropene
German Isobuten
  • Isobutenunsaturated hydrocarbon methylpropene
Turkish izobütilen
  • izobütilenunsaturated hydrocarbon methylpropene
Cite this entry
APA

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

MLA

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

Chicago

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

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