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sulfur dioxide
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noun Chemistry.
a colorless, nonflammable, water-soluble, suffocating gas, SO2, formed when sulfur burns: used chiefly in the manufacture of chemicals such as sulfuric acid, in preserving fruits and vegetables, and in bleaching, disinfecting, and fumigating.
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Origin of sulfur dioxide
First recorded in 1865ā70
Words nearby sulfur dioxide
sulfur-35, sulfurate, sulfurated potash, sulfur bacteria, sulfur butterfly, sulfur dioxide, sulfur dye, sulfureous, sulfuret, sulfureted hydrogen, sulfuric
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, Ā© Random House, Inc. 2022
How to use sulfur dioxide in a sentence
Scientific definitions for sulfur dioxide
sulfur dioxide
A colorless, poisonous gas or liquid with a strong odor. It is formed naturally by volcanic activity, and is a waste gas produced by burning coal and oil and by many industrial processes, such as smelting. It is also a hazardous air pollutant and a major contributor to acid rain. Chemical formula: SO2.
The American HeritageĀ® Science Dictionary
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