Usually means: Positively charged sulfur-containing cation.
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We found 11 dictionaries that define the word sulphonium:

General (9 matching dictionaries)
  1. sulphonium: Collins English Dictionary
  2. sulphonium: Wordnik
  3. sulphonium: Wiktionary
  4. Sulphonium, sulphonium: Dictionary.com
  5. Sulphonium: Online Plain Text English Dictionary
  6. sulphonium: Webster's Revised Unabridged, 1913 Edition
  7. Sulphonium: AllWords.com Multi-Lingual Dictionary
  8. sulphonium: FreeDictionary.org
  9. Sulphonium: TheFreeDictionary.com

Medicine (2 matching dictionaries)
  1. sulphonium: Merriam-Webster Medical Dictionary
  2. online medical dictionary (No longer online)

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Definitions from Wiktionary (Sulphonium)

▸ noun:  Alternative spelling of sulfonium [(inorganic chemistry) the univalent H₃S⁺ cation, derived from sulfane]

Similar:
sulfonium, sulphane, sulphine, sulphenyl, sulphone, sulphanide, bisulphate, sulphenylium, sulphonylhydrazone, sodium sulphide, more...

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▸ Rhymes of sulphonium

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Similar:
sulfonium, sulphane, sulphine, sulphenyl, sulphone, sulphanide, bisulphate, sulphenylium, sulphonylhydrazone, sodium sulphide, more...



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