The Collaborative International Dictionary of English v.0.48:

Nitrocarbol \Ni`tro*car"bol\, n. [Nitro- + carbon + L. oleum
   oil.] (Chem.)
   See Nitromethane.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Nitromethane \Ni`tro*meth"ane\, n. [Nitro- + methane.] (Chem.)
   A nitro derivative of methane (CH3.NO2), obtained as a
   mobile liquid; -- called also nitrocarbol. It has been used
   as a rocket fuel and as a gasoline additive to add power to
   the fuel, especially in racing cars.
   [1913 Webster]