octane number

1. 1.

   a measure of the antiknock properties of gasoline

   Synonymsoctane rating

   Broadermeasure

Questions about octane number

What does octane number mean?

octane number means "a measure of the antiknock properties of gasoline".

What is another word for octane number?

Close synonyms include octane rating. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is octane number a common word?

octane number is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.