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
April had more than a dozen incidents between Nestor and Imperial Beach where hourly hydrogen sulfide levels exceeded 200 ppb.
—
Tammy Murga, San Diego Union-Tribune, 5 July 2025
New research shows the Salton Sea is emitting hydrogen sulfide gas, which smells like rotten eggs, at levels higher than previously measured.
—Ian James, Los Angeles Times, 10 June 2025
The issues start when the seaweed washes ashore, rots and emits hydrogen sulfide.
—Alix Martichoux, The Hill, 4 June 2025
The smell stems from hydrogen sulfide, one of the main compounds in sargassum, which contributes to a rotten egg smell.
—Julia Jacobo, ABC News, 5 June 2025
See All Example Sentences for hydrogen sulfide
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.
Tammy Murga, San Diego Union-Tribune, 5 July 2025
New research shows the Salton Sea is emitting hydrogen sulfide gas, which smells like rotten eggs, at levels higher than previously measured.
—Ian James, Los Angeles Times, 10 June 2025
The issues start when the seaweed washes ashore, rots and emits hydrogen sulfide.
—Alix Martichoux, The Hill, 4 June 2025
The smell stems from hydrogen sulfide, one of the main compounds in sargassum, which contributes to a rotten egg smell.
—Julia Jacobo, ABC News, 5 June 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 19 Jul. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share