sulphur dioxide
noun/ˌsʌlfə daɪˈɒksaɪd/
/ˌsʌlfər daɪˈɑːksaɪd/
(US English sulfur dioxide)
[uncountable] (symbol SO2)
- a poisonous gas with a strong smell, that is used in industry and causes air pollution note at sulphur
Definitions on the go
Look up any word in the dictionary offline, anytime, anywhere with the Oxford Advanced Learner’s Dictionary app.
Check pronunciation:
sulphur dioxide