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perchloroethylene

[per-klawr-oh-eth-uh-leen, -klohr-] /pərˌklɔr oʊˈɛθ əˌlin, -ˌkloʊr-/
noun, Chemistry
Origin
1870-1875
1870-75; perchloro- + ethylene
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for per chloroethylene

perchloroethylene

/pəˌklɔːrəʊˈɛθɪliːn/
noun
1.
a colourless liquid used as a dry-cleaning solvent. Formula: CCl2:CCl2
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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per chloroethylene in Science
perchloroethylene
  (pər-klôr'ō-ěth'ə-lēn')   
See tetrachloroethylene.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for per chloroethylene

perchloroethylene

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 perchloroethylene with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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