: a black substance formed by combustion or separated from fuel during combustion, rising in fine particles, and adhering to the sides of the chimney or pipe conveying the smoke
especially
: the fine powder consisting chiefly of carbon that colors smoke
Examples of soot in a Sentence
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Michael Hawthorne, Chicago Tribune, 2 Apr. 2025
These fires release even more carbon dioxide, soot, and other pollutants while devastating biodiversity and ecosystems.
—Nils Rokke, Forbes.com, 26 Mar. 2025
Tony Briscoe, Los Angeles Times, 16 Jan. 2025
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Noun
Better understanding about the dangers of particulate matter, commonly known as soot, prompted the Biden EPA to tighten federal standards, effectively requiring cleaner factories, power plants and vehicles.
—Michael Hawthorne, Chicago Tribune, 2 Apr. 2025
These fires release even more carbon dioxide, soot, and other pollutants while devastating biodiversity and ecosystems.
—Nils Rokke, Forbes.com, 26 Mar. 2025
Verb
The wildfires produced the heaviest smoke and soot the region has seen in recent memory.
—Tony Briscoe, Los Angeles Times, 16 Jan. 2025
See All Example Sentences for soot
Cite this Entry
“Soot.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/soot. Accessed 13 Apr. 2025.
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