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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Currently, sewage and industrial waste drops from culvert pipes onto rocks below, creating splashing that releases airborne pollutants including hydrogen sulfide. Walker Armstrong, San Diego Union-Tribune, 29 Jan. 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 Molten sulfur can cause severe thermal burns and release irritating gases such as sulfur dioxide or hydrogen sulfide if disturbed, according to the Environmental Protection Agency. Michael Dorgan, FOXNews.com, 30 Dec. 2025 Desulfatiglans emerges as a dominant player, alongside sulfate-reducing bacteria such as Desulfobacter, Desulfovibrio, and Desulfobulbus, organisms that actively generate hydrogen sulfide as part of their metabolism. New Atlas, 28 Dec. 2025 See All Example Sentences for hydrogen sulfide

Word History

First Known Use

1869, in the meaning defined above

Time Traveler
The first known use of hydrogen sulfide was in 1869

Browse Nearby Words

Cite this Entry

“Hydrogen sulfide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrogen%20sulfide. Accessed 30 Jan. 2026.

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
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!