|tetrachloroethylene (tět'rə-klôr'ō-ěth'ə-lēn') Pronunciation Key
A colorless, nonflammable organic liquid used in dry-cleaning solutions, as an industrial solvent, and as an agent for expelling or destroying parasitic intestinal worms. Also called perchloroethylene. Chemical formula: C2Cl4.
|given to using long words.|
|(used as a nonsense word by children to express approval or to represent the longest word in English.)|
a colourless, dense, nonflammable, highly stable liquid belonging to the family of organic halogen compounds. Tetrachloroethylene is a powerful solvent for many organic substances. By the mid-20th century it had become the most widely used solvent in dry cleaning (displacing carbon tetrachloride and trichloroethylene) and was also commonly used for cleaning metal objects in vapour-degreasing apparatuses. Its broad acceptance has been based upon its nonflammability and low toxicity. Small quantities are also employed as a vermifuge, particularly against hookworm (see ).
Learn more about tetrachloroethylene with a free trial on Britannica.com.