phosphonium

noun
phos·pho·ni·um | \fäs-ˈfō-nē-əm \

Definition of phosphonium 

: a monovalent cation PH4+ analogous to ammonium and derived from phosphine also : an organic derivative of phosphonium (such as (C2H5)4P+)

First Known Use of phosphonium

1859, in the meaning defined above

History and Etymology for phosphonium

New Latin

Keep scrolling for more

Learn More about phosphonium

Share phosphonium

Statistics for phosphonium

Look-up Popularity

Time Traveler for phosphonium

The first known use of phosphonium was in 1859

See more words from the same year

Keep scrolling for more

More Definitions for phosphonium

phosphonium

noun
phos·pho·ni·um | \fäs-ˈfō-nē-əm \

Medical Definition of phosphonium 

: a monovalent cation PH4+ analogous to ammonium and derived from phosphine also : an organic derivative of phosphonium (as (C2H5)4P+)

Comments on phosphonium

What made you want to look up phosphonium? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a generally accepted meaning of a word

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble-tiles-that-read-scrabble-quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!