research octane number
English
editNoun
editresearch 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
editCoordinate terms
edit- motor octane number (MON)
- anti-knock index (AKI)
Derived terms
edit- RON (abbreviation)