a colorless, oily, slightly water-soluble, poisonous liquid, CH3NO2, used chiefly as a solvent, rocket fuel, and gasoline additive and in organic synthesis.
ni·tro·meth·ane (nī'trō-měth'ān') n. A colorless, oily liquid, CH3NO2, used in making dyes and resins, in organic synthesis, as a fuel in race car engines, and as a rocket propellant.