Hypertext Webster Gateway: "octane"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Octane \Oc"tane\, n. [See {Octa-}] . (Chem.)
Any one of a group of metametric hydrocarcons ({C8H18}) of
the methane series. The most important is a colorless,
volatile, inflammable liquid, found in petroleum, and a
constituent of benzene or ligroin.
From WordNet (r) 1.7 (wn)
octane
n : any isomeric saturated hydrocarbon found in petroleum and
used as a fuel and solvent
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