hydrogen sulfide
noun
: a flammable poisonous gas H2S that has an odor suggestive of rotten eggs and is found especially in many mineral waters and in putrefying matter
Examples of hydrogen sulfide in a Sentence
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The spectral data provided by the JWST revealed hydrogen sulfide in the atmosphere of HR 8799 c, one of the system's inner giants, providing strong evidence that the planet formed by first assembling a solid core before rapidly accreting gas.
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Samantha Mathewson, Space.com, 10 Feb. 2026
These toxic elements sat in the channel’s then-stagnant water, which led to a die-off of all vegetation and the emission of foul-smelling hydrogen sulfide.
—Andrew J. Campa, Los Angeles Times, 7 Feb. 2026
Millions of gallons of untreated wastewater flow daily from Mexico’s Tijuana River across the border into the United States, contaminating beaches near Imperial Beach and exposing nearby communities to toxic gases including hydrogen sulfide.
—Walker Armstrong, San Diego Union-Tribune, 6 Feb. 2026
In a fire, molten sulfur may release toxic gases, such as hydrogen sulfide or sulfur dioxide.
—Leo Bertucci, Louisville Courier Journal, 30 Dec. 2025
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Samantha Mathewson, Space.com, 10 Feb. 2026
These toxic elements sat in the channel’s then-stagnant water, which led to a die-off of all vegetation and the emission of foul-smelling hydrogen sulfide.
—Andrew J. Campa, Los Angeles Times, 7 Feb. 2026
Millions of gallons of untreated wastewater flow daily from Mexico’s Tijuana River across the border into the United States, contaminating beaches near Imperial Beach and exposing nearby communities to toxic gases including hydrogen sulfide.
—Walker Armstrong, San Diego Union-Tribune, 6 Feb. 2026
In a fire, molten sulfur may release toxic gases, such as hydrogen sulfide or sulfur dioxide.
—Leo Bertucci, Louisville Courier Journal, 30 Dec. 2025
See All Example Sentences for hydrogen sulfide
Cite this Entry
“Hydrogen sulfide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrogen%20sulfide. Accessed 23 Feb. 2026.
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