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Webster 1913 Edition


Phosphonium

Phos-pho′ni-um

,
Noun.
[
Phosph
orus + amm
onium
.]
(Chem.)
The hypothetical radical
PH4
, analogous to ammonium, and regarded as the nucleus of certain derivatives of phosphine.

Definition 2024


phosphonium

phosphonium

English

Noun

phosphonium (plural phosphoniums)

  1. (chemistry) the tetravalent positively-charged phosphorus cation R4P+

Derived terms

  • phosphonium iodide