octane number, octane rating(noun)
a measure of the antiknock properties of gasoline
a measure of the antiknock properties of an automobile fuel; isooctane having an octane number of 100, a fuel with the same antiknock properties as a mixture of 90% isooctane and 10% heptane having an octane number of 90
The numerical value of octane number in Chaldean Numerology is: 4
The numerical value of octane number in Pythagorean Numerology is: 5
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"octane number." Definitions.net. STANDS4 LLC, 2017. Web. 14 Dec. 2017. <http://www.definitions.net/definition/octane number>.