WordReference Random House Unabridged Dictionary of American English © 2025
hy′drogen chlo′ride, 
  1. Chemistrya colorless gas, HCl, having a pungent odor: the anhydride of hydrochloric acid.
  • 1865–70

Collins Concise English Dictionary © HarperCollins Publishers::
hydrogen chloride
  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
'hydrogen chloride' also found in these entries (note: many are not synonyms or translations):
chlorosulfonic acid - dehydrochlorinate - hydrochloric acid - monobasic
In Lists: Gases, more...

Forum discussions with the word(s) "hydrogen chloride" in the title:


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