0%

octane number

oc·tane num·ber
O o

Transcription

    • US Pronunciation
    • US IPA
    • UK Pronunciation
    • UK IPA
    • [ok-teyn nuhm-ber]
    • /ˈɒk teɪn ˈnʌm bər/
    • /ˈɒk.teɪn ˈnʌmbə(r)/
    • US Pronunciation
    • US IPA
    • [ok-teyn nuhm-ber]
    • /ˈɒk teɪn ˈnʌm bər/

Definitions of octane number words

  • noun octane number (of gasoline) a designation of antiknock quality, numerically equal to the percentage of isooctane by volume in a mixture of isooctane and normal heptane that matches the given gasoline in antiknock characteristics. 1
  • noun octane number a measure of the quality of a petrol expressed as the percentage of isooctane in a mixture of isooctane and n-heptane that gives a fuel with the same antiknock qualities as the given petrol 0
  • noun octane number 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 0
  • noun octane number The octane number of a fuel, especially gasoline, is a measure of its anti-knock properties. 0
See all 4 definitions of octane number

Information block about the term

Origin of octane number

First appearance:

before 1930
One of the 10% newest English words
First recorded in 1930-35

Historical Comparancy

Parts of speech for Octane number

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
Full grammatical hierarchy of Octane number

octane number popularity

A pretty common term. Usually people know it’s meaning, but prefer to use a more spread out synonym. About 34% of English native speakers know the meaning and use word.
According to our data about 60% of words is more used. This is a rare but used term. It occurs in the pages of specialized literature and in the speech of educated people.

octane number usage trend in Literature

This diagram is provided by Google Ngram Viewer

See also

Matching words

Was this page helpful?
Yes No
Thank you for your feedback! Tell your friends about this page
Tell us why?