To save this word, you'll need to log in.
sul·fo·ni·um | \ ˌsəl-ˈfō-nē-əm 
\
\Definition of sulfonium
: a monovalent group or cation SH3 or derivative SR3
Keep scrolling for more
Keep scrolling for more
More Definitions for sulfonium
sulfonium
nounsul·fo·ni·um
variants:
or chiefly British sulphonium \ ˌsəl-ˈfō-nē-əm \
\Medical Definition of sulfonium
: a monovalent group or cation SH3 or derivative SR3
Comments on sulfonium
What made you want to look up sulfonium? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Semantic Drift Quiz
- Which of the following was once a synonym for fun?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
Share sulfonium
Time Traveler for sulfonium
The first known use of sulfonium was in 1885
See more words from the same year