- a colorless, nonflammable, vaporous, toxic liquid, CCl4, usually produced by the reaction of chlorine with carbon disulfide, methane, or other carbon-containing compounds: used mainly as a refrigerant, fire extinguisher, cleaning fluid, solvent, and insecticide.
- a colourless volatile nonflammable sparingly soluble liquid made from chlorine and carbon disulphide; tetrachloromethane. It is used as a solvent, cleaning fluid, and insecticide. Formula: CCl 4