octane

O1C3T1A1N1E1
/ˈɒkteɪn/

noun

Any of the eighteen isomeric aliphatic hydrocarbons (C₈H₁₈) found in petroleum, especially an iso-octane 2,2,4 trimethyl-pentane; they are used as fuels and solvents.

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Meanings

nounoctane (plural octanes)

plural octanes

  1. chemistryAny of the eighteen isomeric aliphatic hydrocarbons (C₈H₁₈) found in petroleum, especially an iso-octane 2,2,4 trimethyl-pentane; they are used as fuels and solvents.
  2. octane number

Origin

From oct- + -ane.

Full word history & related roots →

Translations

Arabic أُوكْتَان
  • أُوكْتَان (ʔuktān)isomeric aliphatic hydrocarbons
Bulgarian октан
  • октан (oktan)isomeric aliphatic hydrocarbons
Catalan octà
  • octàisomeric aliphatic hydrocarbons
Chinese Mandarin 辛烷
  • 辛烷 (xīnwàn)isomeric aliphatic hydrocarbons
Czech oktan
  • oktanisomeric aliphatic hydrocarbons
Dutch octaan
  • octaanisomeric aliphatic hydrocarbons
Esperanto oktano
  • oktanoisomeric aliphatic hydrocarbons
Finnish oktaani
  • oktaaniisomeric aliphatic hydrocarbons
French octane
  • octaneisomeric aliphatic hydrocarbons
German Octan
  • Octanisomeric aliphatic hydrocarbons
Greek οκτάνιο
  • οκτάνιο (oktánio)isomeric aliphatic hydrocarbons
Icelandic oktan
  • oktanisomeric aliphatic hydrocarbons
Indonesian oktana
  • oktanaisomeric aliphatic hydrocarbons
Italian ottano
  • ottanoisomeric aliphatic hydrocarbons
Japanese オクタン
  • オクタン (okutan)isomeric aliphatic hydrocarbons
Korean 옥테인, 옥탄
  • 옥테인 (oktein)isomeric aliphatic hydrocarbons
  • 옥탄 (oktan)isomeric aliphatic hydrocarbons
Norwegian oktan
  • oktanisomeric aliphatic hydrocarbons
Persian اکتان
  • اکتان (oktân)isomeric aliphatic hydrocarbons
Polish oktan
  • oktanisomeric aliphatic hydrocarbons
Portuguese octano
  • octanoisomeric aliphatic hydrocarbons
Romanian octan
  • octanisomeric aliphatic hydrocarbons
Russian окта́н
  • окта́н (oktán)isomeric aliphatic hydrocarbons
Spanish octano
  • octanoisomeric aliphatic hydrocarbons
Swedish oktan
  • oktanisomeric aliphatic hydrocarbons
Vietnamese octan
  • octanisomeric aliphatic hydrocarbons

Rhymes & wordplay

Rhymes with octane

n-octane
All rhymes →

Anagrams

Catoneencoat
Cite this entry
APA

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

MLA

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

Chicago

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

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