research octane number
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Noun
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.
- Synonym: (initialism) RON
Hypernyms
Coordinate terms
- motor octane number (MON)
- anti-knock index (AKI)
Derived terms
- RON (abbreviation)
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