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sulfur dioxide
noun
: a heavy pungent toxic gas SO2 that is easily condensed to a colorless liquid, is used especially in making sulfuric acid, in bleaching, as a preservative, and as a refrigerant, and is a major air pollutant especially in industrial areas
Examples of sulfur dioxide in a Sentence
Recent Examples on the Web
During the shutdown, two workers were injured in a fire and the refinery repeatedly released hydrogen sulfide and sulfur dioxide into the air and benzene into Sand Creek, which flows along the refinery’s northeastern border.
—Noelle Phillips, The Denver Post, 15 Nov. 2024
Because right now, there's nobody to stop you from sending a weather balloon up and throwing some sulfur dioxide into the air.
—Taylor Wilson, USA TODAY, 9 Sep. 2024
In 1991 the eruption of Mount Pinatubo in the Philippines blasted more than 15 million tons of sulfur dioxide 21 miles high.
—Elizabeth Weise, USA TODAY, 7 Sep. 2024
These regions, which have rapidly industrialized over the past four decades, have seen a two- to fourfold increase in sulfur dioxide and black carbon emissions since the 1970s.
—Veerabhadran Ramanathan, Foreign Affairs, 16 Feb. 2016
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Word History
First Known Use
1869, in the meaning defined above
Dictionary Entries Near sulfur dioxide
Cite this Entry
“Sulfur dioxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sulfur%20dioxide. Accessed 28 Nov. 2024.
Kids Definition
sulfur dioxide
noun
: a heavy strong-smelling gas that is used especially in making sulfuric acid, in bleaching, in preserving things, and as a refrigerant and that is a major substance in air pollution especially in industrial areas
Medical Definition
sulfur dioxide
noun
: a heavy pungent toxic gas SO2 that is easily condensed to a colorless liquid, is used especially in making sulfuric acid, in bleaching, as a preservative, and as a refrigerant, and is a major air pollutant especially in industrial areas
More from Merriam-Webster on sulfur dioxide
Britannica.com: Encyclopedia article about sulfur dioxide
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