Octane Number Definition
noun
A number representing the antiknock properties of a gasoline, fuel mixture, etc., determined by the percentage of isooctane that must be mixed with normal heptane to produce the knocking quality of the fuel being tested: the higher the number, the greater the antiknock properties.
Webster's New World
Synonyms:
- octane rating
Other Word Forms of Octane Number
Noun
Singular:
octane number
Plural:
octane-numbersOctane Number Is Also Mentioned In
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