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

Word History

First Known Use

1987, in the meaning defined above

Time Traveler
The first known use of bifenthrin was in 1987

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Cite this Entry

“Bifenthrin.” Dictionary, Merriam-Webster, Accessed 23 Apr. 2024.

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