phosphonium
noun
phos·pho·ni·um
fäs-ˈfō-nē-əm 
: a monovalent cation PH4+ analogous to ammonium and derived from phosphine
also
: an organic derivative of phosphonium (such as (C2H5)4P+)
Word History
Etymology
New Latin
First Known Use
1859, in the meaning defined above
Dictionary Entries Near phosphonium
Cite this Entry
“Phosphonium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/phosphonium. Accessed 16 Apr. 2024.
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Medical Definition
phosphonium
noun
phos·pho·ni·um
fäs-ˈfō-nē-əm
: a monovalent cation PH4+ analogous to ammonium and derived from phosphine
also
: an organic derivative of phosphonium (as (C2H5)4P+)
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