What does "isooctane" mean?

any isomer of n-octane; especially 2,2,4-trimethylpentane, used as a reference in the determination of the octane number of fuel

What is a synonym for "isooctane"?

Common synonyms include: alcohol, benzine, carbon, charcoal, coal, coke.

noun

noun ·Rare ·Advanced level

Noun

1
any isomer of n-octane; especially 2,2,4-trimethylpentane, used as a reference in the determination of the octane number of fuel countable, uncountable

From iso- + octane.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.