(also sulfur dioxide)
noun[mass noun] Chemistry
A colourless pungent toxic gas formed by burning sulphur in air.
- Chemical formula: SO2
More example sentences
- Other trace gases include methane, nitrous oxide, carbon monoxide, sulphur dioxide, and ozone.
- The District's urban forest improves air quality by removing nitrogen dioxide, sulfur dioxide, carbon monoxide, ozone, and particulate matter.
- When fossil fuels burn, carbon dioxide, sulfur dioxide, nitrogen oxides, sooty particles, dioxins, and other pollutants are released into the air and water.
Definition of sulphur dioxide in:
- The US English dictionary