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.
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.
noun, Chemistry. 1. any of the class of dyes produced by heating an organic compound, as an indophenol, with sulfur or sodium polysulfide, used chiefly in dyeing cotton.
adjective 1. consisting of, containing, or pertaining to sulfur. 2. like sulfur, especially in color.
noun 1. Chemistry. a sulfide. verb (used with object), sulfureted, sulfureting or (especially British) sulfuretted, sulfuretting. 2. to treat or combine with sulfur.
noun, Chemistry. 1. hydrogen sulfide.