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octane British & World English

A colourless flammable hydrocarbon of the alkane series, present in petroleum spirit

high-octane British & World English

Denoting petrol having a high octane number and thus good anti-knock properties

octane number British & World English

A figure indicating the anti-knock properties of a fuel, based on a comparison with a mixture of isooctane and heptane

isooctane British & World English

A liquid hydrocarbon present in petroleum. It serves as a standard in the system of octane numbers

n-octane in octane British & World English

A colourless flammable hydrocarbon of the alkane series, present in petroleum spirit

octane rating in octane number British & World English

A figure indicating the anti-knock properties of a fuel, based on a comparison with a mixture of isooctane and heptane