research octane number
English edit
Noun edit
research octane number (plural research octane numbers)
- An octane number, used by the American Society for Testing and Materials to estimate the antiknock characteristics of a fuel at low engine speeds
Synonyms edit
- RON (abbreviation)
Hypernyms edit
Coordinate terms edit
- motor octane number (MON)
- anti-knock index (AKI)
Derived terms edit
- RON (abbreviation)