octane - Wiktionary, the free dictionary
English
Noun
octane (plural octanes)
- (organic chemistry) Any of the eighteen isomeric aliphatic hydrocarbons (C H) found in petroleum, especially an iso-octane 2,2,4 trimethyl-pentane; they are used as fuels and solvents.
- octane number
Etymology
From oct- + -ane.
Pronunciation
- enPR: ŏk’tān, IPA: /ˈɒkteɪn/
- Audio (Southern England): 🔊
- Rhymes: -ɒkteɪn
Printed 2026-06-28.
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