Share this entry

Share this page

octane

Line breaks: oc¦tane
Pronunciation: /ˈɒkteɪn
 
/

Definition of octane in English:

noun

[mass noun] Chemistry
A colourless flammable hydrocarbon of the alkane series, present in petroleum spirit.
Example sentences
  • Carbon in its most reduced form is found in alkanes, which are typically fuels like methane, propane, and octane.
  • Instead, new engines have been designed to run on lower octane gasoline, which is made of hydrocarbons that are resistant to knock.
  • Four different solvent media were considered: octane, tetrahydrofuran, acetonitrile, and water.

Origin

late 19th century: from octo- 'eight' (denoting eight carbon atoms) + -ane2.

Definition of octane in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day tenebrous
Pronunciation: ˈtenəbrəs
adjective
dark; shadowy or obscure