Meaning of octane in English:



mass nounChemistry
  • A colourless flammable hydrocarbon of the alkane series, present in petroleum spirit.

    Chemical formula: C₈H₁₈; many isomers, especially the straight-chain isomer (n-octane). See also and isooctane

    • ‘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.’
    • ‘To test the validity of the open-state model, molecular dynamics simulations in octane, a lipid bilayer mimetic, were carried out.’
    • ‘My job was to change the plastic numbers displaying the price of 87 - octane standard unleaded gasoline from $1.54 to $1.56.’


Late 19th century from octo- ‘eight’ (denoting eight carbon atoms) + -ane.