phos·​pham·​i·​don | \ fäsˈfaməˌdän\
plural -s

Definition of phosphamidon

: a contact and systemic organophosphorus insecticide and miticide C10H19ClNO5P

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

First Known Use of phosphamidon

1960, in the meaning defined above

History and Etymology for phosphamidon

phosph- + amid- + -on entry 1

Keep scrolling for more

Learn More about phosphamidon

Statistics for phosphamidon

Look-up Popularity

Time Traveler for phosphamidon

The first known use of phosphamidon was in 1960

See more words from the same year

Comments on phosphamidon

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


to spread over or through

Get Word of the Day daily email!

Test Your Vocabulary

The Exceptions Quiz III

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

Word Winder's CrossWinder

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

Love words? Need even more definitions?

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