octane number

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.

Synonyms

• octane rating

Hyponyms

• motor octane number (MON)
• research octane number (RON)
• antiknock index (AKI)

Derived terms

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

Translations

measure of the antiknock properties of an automobile fuel

• Danish: oktantal (da) n
• Finnish: oktaaniluku (fi)
• French: indice d’octane (fr) m
• German: Oktanzahl (de) f
• Hungarian: oktánszám (hu)
• Italian: numero di ottano (it) m
• (deprecated template usage) {{trans-mid}}
• Kazakh: октан саны (oktan sany)
• Persian: عدد اکتان ('adad-e oktân)
• Portuguese: octanagem (pt) f
• Spanish: octanaje m
• Swedish: oktantal (sv) n, oktan (sv) n

See also

• cetane number

Further reading

• octane rating on Wikipedia.Wikipedia