- a colorless gas, HCl, having a pungent odor: the anhydride of hydrochloric acid.
Origin of hydrogen chloride
First recorded in 1865–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- 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
- 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
- A colorless, fuming, corrosive, very soluble, suffocating gas that forms hydrochloric acid in solution.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- 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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.