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[mass noun] A colourless flammable hydrocarbon of the alkane series, present in petroleum spirit.
- ‘Carbon in its most reduced form is found in alkanes, which are typically fuels like methane, propane, and octane.’
- ‘My job was to change the plastic numbers displaying the price of 87 - octane standard unleaded gasoline from $1.54 to $1.56.’
- ‘Four different solvent media were considered: octane, tetrahydrofuran, acetonitrile, and water.’
- ‘Instead, new engines have been designed to run on lower octane gasoline, which is made of hydrocarbons that are resistant to knock.’
- ‘To test the validity of the open-state model, molecular dynamics simulations in octane, a lipid bilayer mimetic, were carried out.’
Late 19th century: from octo- eight (denoting eight carbon atoms) + -ane.
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