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 For example, oxygen can form from sulfur dioxide, which abounds on worlds as diverse as Venus and Europa. Elise Cutts, WIRED, 7 Apr. 2024 According to the Environmental Protection Agency website, sulfur dioxide can cause respiratory problems, depending on the concentration and length of exposure. CBS News, 23 Nov. 2023 One scenario is that volcanoes release chemical compounds called phosphides, which could react with sulfur dioxide in Venus’ atmosphere to form phosphine — a plausible explanation given that scientists have found evidence of active volcanism on our twin planet. Elise Cutts, Quanta Magazine, 19 Mar. 2024 Scientists think sulfurous compounds such as sulfur dioxide might have played a key role on early Earth that eventually paved the way for life to form. Ashley Strickland, CNN, 15 Mar. 2024 Monday’s settlement covers the period between July 2019 and June 2021 when the refinery exceeded the amounts of sulfur dioxide, carbon monoxide, nitrogen oxides and hydrogen sulfide it is allowed to release. Noelle Phillips, The Denver Post, 5 Feb. 2024 Volcanic gases, like sulfur dioxide, escape from magma at shallow depths and may signal an impending eruption. Robin George Andrews, Quanta Magazine, 20 Feb. 2024 Four ways wind, solar and water can power the US There are published estimates of sulfur dioxide emissions from the 2022 eruption, and these can be used to roughly approximate CO2 emissions, researchers told USA TODAY. USA TODAY, 5 Jan. 2024 Noxious volcanic gases may also be a problem—in particular, sulfur dioxide, which effuses from shallow magma. Robin George Andrews, Scientific American, 13 Feb. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'sulfur dioxide.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1869, in the meaning defined above

Time Traveler
The first known use of sulfur dioxide was in 1869

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 17 Apr. 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

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