1
: any of various organic compounds characterized by a sulfur atom attached to two carbon atoms
2
: a binary compound (such as CuS) of sulfur usually with a more electropositive element or group : a salt of hydrogen sulfide
Examples of sulfide in a Sentence
Recent Examples on the Web
With the zirconium sulfide coating, the cathodes continued operating for more than 1,000 cycles.
—
Neetika Walter, Interesting Engineering, 13 Mar. 2026
Seafloor massive sulfides at hydrothermal vents Another source of critical minerals is seafloor massive sulfides, which form near hydrothermal vents along oceanic ridges.
—Leonardo MacElloni, The Conversation, 10 Mar. 2026
Using x-ray fluorescence spectrometry, scholars determined that the ancient off-white fluid was composed of calcite, huntite, and miniscule flecks of yellow orpiment, a highly toxic sulfide of arsenic that Egyptians also used in medicine to treat syphilis and malaria.
—News Desk, Artforum, 9 Mar. 2026
Sportsmen like Tawney are particularly troubled as Congress seeks to open more public land to unchecked development including a recent effort to push through a copper sulfide mine in the Boundary Waters Canoe Wilderness Area.
—Christine Peterson, Outdoor Life, 25 Feb. 2026
See All Example Sentences for 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.
Neetika Walter, Interesting Engineering, 13 Mar. 2026
Seafloor massive sulfides at hydrothermal vents Another source of critical minerals is seafloor massive sulfides, which form near hydrothermal vents along oceanic ridges.
—Leonardo MacElloni, The Conversation, 10 Mar. 2026
Using x-ray fluorescence spectrometry, scholars determined that the ancient off-white fluid was composed of calcite, huntite, and miniscule flecks of yellow orpiment, a highly toxic sulfide of arsenic that Egyptians also used in medicine to treat syphilis and malaria.
—News Desk, Artforum, 9 Mar. 2026
Sportsmen like Tawney are particularly troubled as Congress seeks to open more public land to unchecked development including a recent effort to push through a copper sulfide mine in the Boundary Waters Canoe Wilderness Area.
—Christine Peterson, Outdoor Life, 25 Feb. 2026
See All Example Sentences for sulfide
Cite this Entry
“Sulfide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sulfide. Accessed 17 Mar. 2026.
Copy CitationKids Definition
sulfide
noun
sul·fide
ˈsəl-ˌfīd 
: a compound of sulfur with one or more other elements : a salt of hydrogen sulfide
Medical Definition
Love words? Need even more definitions?
Merriam-Webster unabridged
