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väävli oksiid, milles väävli oksüdatsiooniaste on IV, valem SO2; terava lõhnaga gaasiline aine.
оксид серы (IV) . Koolisõnastikud 2005–2010. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//kool_KV/%D0%BE%D0%BA%D1%81%D0%B8%D0%B4%20%D1%81%D0%B5%D1%80%D1%8B%20%28IV%29/1/rus (21.06.2026)
