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hydrogen chloride

noun

  1. a colorless gas, HCl, having a pungent odor: the anhydride of hydrochloric acid.

hydrogen chloride

noun

  1. a colourless pungent corrosive gas obtained by the action of sulphuric acid on sodium chloride: used in making vinyl chloride and other organic chemicals. Formula: HCl
  2. an aqueous solution of hydrogen chloride; hydrochloric acid
“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

hydrogen chloride

  1. A colorless, corrosive, suffocating gas used in making plastics and in many industrial processes. When mixed with water, it forms hydrochloric acid. Chemical formula: HCl.
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Word History and Origins

Origin of hydrogen chloride1

First recorded in 1865–70
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