tetrachloroethylene

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Molecular structure of tetrachloroethylene

tetrachloroethylene (countable and uncountable; plural tetrachloroethylenes)

A chlorocarbon with the formula C₂Cl₄, often used in dry cleaning
- 2007 May 12, The Associated Press, “Car Wash’s Water Is Tested in Search for Contaminant”, New York Times:
  
  The department has been testing samples of tap water in the affected neighborhoods for the presence of the chemical, tetrachloroethylene, which is used in dry cleaning and auto body repair.