Meanings
nounsulfur trioxide (uncountable)
alternative UK sulphur trioxide
- uncountablechemistryA corrosive liquid, SO₃, which forms sulfuric acid on contact with water; made commercially by the oxidation of sulfur dioxide.
Translations
Chinese Cantonese 三氧化硫
- 三氧化硫 (saam¹ joeng⁵ faa³ lau⁴)the compound SO3
Chinese Mandarin 三氧化硫
- 三氧化硫 (sānyǎnghuàliú)the compound SO3
Czech oxid sírový
- oxid sírovýthe compound SO3
French trioxyde de soufre
- trioxyde de soufrethe compound SO3
German Schwefeltrioxid
- Schwefeltrioxidthe compound SO3
Hungarian kén-trioxid
- kén-trioxidthe compound SO3
Italian triossido di zolfo, anidride solforica
- triossido di zolfothe compound SO3
- anidride solforicathe compound SO3
Swedish svaveltrioxid
- svaveltrioxidthe compound SO3
Cite this entry
APA
sulfur trioxide. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/sulfur%20trioxide
MLA
“sulfur trioxide.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/sulfur%20trioxide. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “sulfur trioxide,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/sulfur%20trioxide.
Source: sulfur trioxide on Wiktionary, CC BY-SA 4.0.