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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
Recent Examples on the Web
Reports have found that the lake emits hydrogen sulfide, a toxic gas that can be fatal at high concentrations, and is filled with heavy metals like arsenic.
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Alejandra Martinez The Texas Tribune, arkansasonline.com, 9 Feb. 2025
Readings for hydrogen sulfide have been less than 1 part-per-million, Albemarle said, far below OSHA and National Institute of Occupational Safety and Health guidelines.
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Catherine Muccigrosso, Charlotte Observer, 3 Feb. 2025
When iron is also present, the hydrogen sulfide reacts with iron to form pyrite, which is iron sulfide.
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Paul Smaglik, Discover Magazine, 29 Oct. 2024
Hog and poultry barns are equipped with giant exhaust fans that push pollutants, such as ammonia, hydrogen sulfide, volatile organic compounds, and particulate matter, out into the atmosphere.
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Kenny Torrella, Vox, 23 Jan. 2025
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Word History
First Known Use
1869, in the meaning defined above
Dictionary Entries Near hydrogen sulfide
Cite this Entry
“Hydrogen sulfide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrogen%20sulfide. Accessed 18 Feb. 2025.
Kids Definition
hydrogen sulfide
noun
: a flammable poisonous gas with a disagreeable odor suggestive of rotten eggs
Medical Definition
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
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