(also octane rating)
Definition of octane number in English:
A figure indicating the antiknock properties of a fuel, based on a comparison with a mixture of isooctane and heptane.
- In particular, the formation of branched alkanes increases the octane number and combustibility of the resulting hydrocarbon.
- Using a fuel of a higher octane rating than that recommended for your car doesn't improve its performance.
- The higher the octane number you see on a gas pump, the more the fuel can be compressed before it explodes.
Definition of octane number in:
- British & World English dictionary
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