sulfur dioxide

noun

Definition of sulfur dioxide

: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

First Known Use of sulfur dioxide

1869


SULFUR DIOXIDE Defined for English Language Learners

sulfur dioxide

noun

Definition of sulfur dioxide for English Language Learners

  • chemistry : a gas that has a strong smell, that is used in many industries, and that contributes to air pollution


Medical Dictionary

sulfur dioxide

noun

medical Definition of sulfur dioxide

: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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