Definition of TOLUENE

  • colorless, water-insoluble, flammable liquid, C7H8, having a benzenelike odor, obtained chiefly from coal tar and petroleum: used as a solvent in the manufacture of benzoic acid, benzaldehyde, TNT, and other organic compounds
  • a liquid aromatic hydrocarbon C7H8 that resembles benzene but is less volatile, flammable, and toxic and is used especially as a solvent, in organic synthesis, and as an antiknock agent for gasoline
  • a solvent derived from coal tar, also TOLUOL, TOLUOLE [n -S]
  • a flammable liquid [n TOLUENES]