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

| hydrogen chloride n. A colorless, fuming, corrosive suffocating gas, HCl, used in the manufacture of plastics. |
hydrogen chloride n.
A colorless, fuming, corrosive, very soluble, suffocating gas that forms hydrochloric acid in solution.
| hydrogen chloride
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. |
hydrogen chloride
(HCl), a compound of the elements hydrogen and chlorine, a gas at room temperature and pressure. A solution of the gas in water is called hydrochloric acid.
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