bifenthrin

noun
bi·​fen·​thrin | \ bī-ˈfen-thrən How to pronounce bifenthrin (audio) \

Definition of bifenthrin

: a synthetic, broad-spectrum, pyrethroid insecticide and acaricide C23H22ClF3O2 Plant nurseries in certain counties are being required by the state to treat their soil with bifenthrin to check the spread of the ant.— Pamela S. Zurer, Chemical & Engineering News, 2 Sept. 2002 … the most toxic compound in the creeks is bifenthrin, which is sprayed around houses by exterminators and is found in some consumer products that are spread on lawns.— Marla Cone, Los Angeles Times, 14 July 2006

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 bifenthrin

1987, in the meaning defined above

Keep scrolling for more

Learn More about bifenthrin

Time Traveler for bifenthrin

Time Traveler

The first known use of bifenthrin was in 1987

See more words from the same year

Statistics for bifenthrin

Cite this Entry

“Bifenthrin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bifenthrin. Accessed 24 Sep. 2020.

Comments on bifenthrin

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

WORD OF THE DAY

Test Your Vocabulary

Homophone Quiz

  • three bears two of them look like theyre whispering to a third bear who looks chuffed to be the center of attention
  • In order to judge how people felt, the senator's office hired a firm to take a ______.
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Add Diction

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!