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hydrochloric acid

noun

  1. a colorless or faintly yellow, corrosive, fuming liquid, HCl, used chiefly in chemical and industrial processes.

hydrochloric acid

/ ˌɪəˈɒɪ /

noun

  1. the colourless or slightly yellow aqueous solution of hydrogen chloride: a strong acid used in many industrial and laboratory processes Formerly calledmuriatic 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

hydrochloric acid

  1. A solution of hydrogen chloride in water, forming a very strong, poisonous, corrosive acid with a sharp odor. It is used in food processing, metal cleaning, and dyeing. Small amounts of hydrochloric acid are also secreted by the stomachs of animals for digestion.
  2. Also called muriatic acid
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Word History and Origins

Origin of hydrochloric acid1

First recorded in 1825–35
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