Wiktionary
alt. (context American spelling inorganic compound English) A toxic gas, of molecular formula SO2 that is found in the emissions of volcanos and those of burning coal or petroleum; dissolves in water to form sulfurous acid and, in the presence of oxygen, sulfuric acid, and is thus responsible for acid rain. n. (context American spelling inorganic compound English) A toxic gas, of molecular formula SO2 that is found in the emissions of volcanos and those of burning coal or petroleum; dissolves in water to form sulfurous acid and, in the presence of oxygen, sulfuric acid, and is thus responsible for acid rain.
WordNet
n. a colorless toxic gas (SO2) that occurs in the gases from volcanoes; used in many manufacturing processes and present in industrial emissions; causes acid rain [syn: sulphur dioxide]
Wikipedia
Sulfur dioxide (also sulphur dioxide) is the chemical compound with the formula . At standard atmosphere, it is a toxic gas with a pungent, irritating smell. The triple point is 197.69 K and 1.67 kPa. It is released naturally by volcanic activity.
Sulfur dioxide was used by the Romans in winemaking when they discovered that burning sulfur candles inside empty wine vessels kept them fresh and free from vinegar smell.
Usage examples of "sulfur dioxide".
Nodon was explaining how the pumps could be powered by hot sulfur dioxide from the heat exchangers.
The currently favored explanation is that the Ionian volcanos are driven not by upwelling molten rock, as on the Earth, the Moon, Venus, and Mars, but by upwelling sulfur dioxide and molten sulfur.
There was an amorphous, intangible ambience of emotion that had to coalesce somewhere, like sulfur dioxide precipitating at night, and now, for each of us, it had no object except the other.
The Io plasma torus was a giant doughnut of charged particles stirred up within the trail of sulfur dioxide, hydrogen sulfide, and other gases left behind—.
Its not so easy to recruit hells cadre, said the demon, with a frank shrug that made the faint odor of sulfur dioxide in the air a trifle stronger.
The immediate threat is to a small town at the foot of the volcano, where the air reeks with the fumes of hydrogen sulfide and sulfur dioxide, and it is here that Rick and Scotty help Dr.