Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

organophosphorus

play
adjective or·gan·o·phos·pho·rus \-ˈfäs-f(ə-)rəs\

Definition of organophosphorus

  1. :  of, relating to, or being a phosphorus-containing organic compound and especially a pesticide (as malathion) that acts by inhibiting cholinesterase

organophosphorus noun


1950

First Known Use of organophosphorus

1950

Variants of organophosphorus

also or·gan·o·phos·pho·rous play \-fäs-ˈfȯr-əs\

Medical Dictionary

organophosphorus

play
adjective or·gan·o·phos·pho·rus \-ˈfäs-f(ə-)rəs\

Medical Definition of organophosphorus

  1. :  of, relating to, or being a phosphorus-containing organic pesticide (as malathion) that acts by inhibiting cholinesterase

  2. organophosphorus noun



Variants of organophosphorus

also or·gan·o·phos·pho·rous \-fäs-ˈfōr-əs, -ˈfȯr-\play

Learn More about organophosphorus

  1. Medical Dictionary: Definition of "organophosphorus"


Seen and Heard

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

WORD OF THE DAY

February 6, 2016

an official order, decree, or edict

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

spindrift kittly-benders duvet pince-nez
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ