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

paraquat

play
noun para·quat \ˈpa-rə-ˌkwät\

Definition of paraquat

  1. :  a highly toxic contact herbicide containing a salt of a cation [C12H14N2]2+



Origin and Etymology of paraquat

para- + quaternary


First Known Use: circa 1961


Medical Dictionary

paraquat

play
noun para·quat \ˈpar-ə-ˌkwät\

Medical Definition of paraquat

  1. :  an herbicide containing a salt of a cation [C12H14N2]2+ that is used especially as a weed killer and that is extremely toxic to the liver, kidneys, and lungs if ingested




Learn More about paraquat


Seen and Heard

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

WORD OF THE DAY

to depart quickly

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

alphabet-pasta-spelling-help

Which is the correct spelling?

acommodate accomodate acommadate accommodate
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ