Definition of sulfur dioxide in English:

Share this entry

sulfur dioxide

Pronunciation: /ˈsəlfər dīˈäkˌsīd/


A colorless pungent toxic gas formed by burning sulfur in air.
  • Chemical formula: SO2.
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.

For editors and proofreaders

Syllabification: sul·fur di·ox·ide

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.