Dictionary.com
definitions
  • synonyms

phosphonium

[fos-foh-nee-uh m]
noun Chemistry.
  1. the positively charged group PH4+.
Show More

Origin of phosphonium

First recorded in 1865–70; phosph(orus) + (amm)onium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018