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sulfur dioxide

noun, Chemistry
a colorless, nonflammable, water-soluble, suffocating gas, SO 2 , 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.
Origin of sulfur dioxide
1865-70 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for sulfur dioxide
Contemporary Examples
  • Pfifferling, like most natural wine producers, adds no sulfur dioxide aside from minimal amounts when he bottles the wine.

Historical Examples
  • Hydrogen sulfide was what gave the characteristic aroma to rotten eggs, and sulfur dioxide wasn't exactly perfume.

    The Flaming Mountain Harold Leland Goodwin
  • Violently ill, I felt the sulfur dioxide rush from my lungs.

    Question of Comfort Les Collins
  • sulfur dioxide or chlorine, for example, would not allow the formation of water-ice.

    Planet of Dread Murray Leinster
  • There is an occasional outpouring of hydrogen sulfide and sulfur dioxide.

    The Flaming Mountain Harold Leland Goodwin
  • It does not resist so well hydrochloric acid or sulfur dioxide or alkalies.

    Creative Chemistry Edwin E. Slosson
  • In an ecstatic, semistuporous state, smelling strongly of sulfur dioxide, he couldn't have been aware of me.

    Question of Comfort Les Collins
sulfur dioxide in Science
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 Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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