octane

• POS: Noun
• HYPHEN: oc=tane

CIDE DICTIONARY

octane, n. [See Octa-].

 Any one of a group of metametric hydrocarbons (C8H18) of the methane (paraffin) series. The most important is a colorless, volatile, inflammable liquid, found in petroleum, and a constituent of gasoline or ligroin.  [1913 Webster]

OXFORD DICTIONARY

octane, n. a colourless inflammable hydrocarbon of the alkane series.

Idiom

high-octane (of fuel used in internal-combustion engines) having good antiknock properties, not detonating readily during the power stroke. octane number (or rating) a figure indicating the antiknock properties of a fuel.

Usage

Chem. formula: C8H18

Etymology

OCT- + -ANE

THESAURUS

octane

alcohol, benzine, briquette, burnable, butane, carbon, charcoal, coal, coke, combustible, dope, ethane, ethanol, fireball, firing, flammable, flammable material, fuel, fuel additive, fuel dope, gas, gas carbon, gasoline, heptane, hexane, inflammable, inflammable material, isooctane, jet fuel, kerosene, methane, methanol, natural gas, oil, paraffin, peat, pentane, propane, propellant, rocket fuel, turf