( BrE ) ( NAmE ˌsulfur diˈoxide ) noun
[ U ] ( symb SO 2 ) ( chemistry ) a poisonous gas with a strong smell, that is used in industry and causes air pollution
( BrE ) ( NAmE ˌsulfur diˈoxide ) noun
[ U ] ( symb SO 2 ) ( chemistry ) a poisonous gas with a strong smell, that is used in industry and causes air pollution
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005