English

Noun

octane number ‎(plural octane numbers)

1. a measure of the antiknock properties of an automobile fuel; isooctane having an octane number of 100, a fuel with the same antiknock properties as a mixture of 90% isooctane and 10% heptane having an octane number of 90

Translations

See also

• cetane number
• motor octane number (MON)
• research octane number (RON)