Heptane

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Heptane \Hep"tane\, n. [Gr. "epta` seven.] (Chem.)
     Any one of several isometric hydrocarbons, {C7H16}, of the
     paraffin series (nine are possible, four are known); -- so
     called because the molecule has seven carbon atoms.
     Specifically, a colorless liquid, found as a constituent of
     petroleum, in the tar oil of cannel coal, etc.


     [1913 Webster]

From WordNet (r) 2.0 [wn]:

  heptane
       n : a colorless volatile highly flammable liquid obtained from
           petroleum and used as an anesthetic or a solvent or in
           determining octane ratings