octane

CEFRC1

/ˈɒkteɪn/

noun

Türkçe translations

Translating…

In plain English

  1. 01

    noun

    A measure of how well fuel works in an engine.

  2. 02

    noun

    Extra detail

    octane number

Examples

  • The car required low-octane fuel to run smoothly.

  • The high-octane fuel was expensive but efficient.

At a glance

Sits at C1 on the CEFR scale

Senses
3
Parts of speech
1

Deep Dive

noun

Extra meaning

  1. Any of the eighteen isomeric aliphatic hydrocarbons (C₈H₁₈) found in petroleum, especially an iso-octane 2,2,4 trimethyl-pentane; they are used as fuels and solvents.

More examples

In context

  • What kind of high-octane are you using in your crystal ball these days, Swami?

Quick test

Two questions on this entry. Nothing is scored.

Question 1 · Quick check

The high blank fuel prevented engine knocking in the race car.

Practise this properly in the app, where the word comes back before you forget it.

Nearby

Origin

noun

From oct- + -ane.