tri·chlo·ro·eth·yl·ene 
(trī-klôr′ō-ĕthə-lēn′) also tri·chlo·ro·eth·ene (-ĕthēn)
(trī-klôr′ō-ĕthə-lēn′) also tri·chlo·ro·eth·ene (-ĕthēn)n.
A dense, colorless, nonflammable, toxic liquid chlorinated alkene, C2HCl3, used to degrease metals, as an extraction solvent for oils and waxes, as a refrigerant, in dry cleaning, and as a fumigant.