hydrogen chloride

noun

: a colorless pungent poisonous gas HCl that fumes in moist air and yields hydrochloric acid when dissolved in water

Example Sentences

Recent Examples on the Web

Moving forward, the Mars team will use this imaging and spectroscopic data to explore regional differences across the planet, and search for trace gases (including methane and hydrogen chloride) in its atmosphere. Stephanie Mlot, PCMAG, 20 Sep. 2022

The telescope may also be able to help astronomers look for trace gases in the Martian atmosphere, including hydrogen chloride, methane and other chemical compounds. Sarah Kuta, Smithsonian Magazine, 20 Sep. 2022

And the Mars team is looking forward to using Webb's capabilities to pick out the differences between regions on the red planet and search for gases like methane and hydrogen chloride in the atmosphere. Ashley Strickland, CNN, 19 Sep. 2022

Toxic gases: Volcanoes also release toxic gasses, such as carbon dioxide, carbon monoxide, sulfur dioxide, and hydrogen chloride. Maya Wei-haas, National Geographic, 20 Oct. 2019

Word History

First Known Use

1869, in the meaning defined above

Kids Definition

hydrogen chloride

noun

: a colorless sharp-smelling poisonous gas that is made up of hydrogen and chlorine and produces hydrochloric acid when dissolved in water

Medical Definition

hydrogen chloride

noun

: a colorless pungent poisonous gas HCl that fumes in moist air and yields hydrochloric acid when dissolved in water