permethrin

noun
per·meth·rin | \(ˌ)pər-ˈme-thrən \

Definition of permethrin 

: a synthetic pyrethroid C21H20Cl2O3 used especially as an insecticide

Examples of permethrin in a Sentence

Recent Examples on the Web

Use products that contain permethrin to treat clothing and gear, such as boots, pants, socks and tents. CBS News, "Latest death shines light on tick-borne disease Rocky Mountain spotted fever," 12 July 2018 According to the National Pesticide Information Center, permethrin is not known to cause cancer or affect hormone systems. Scott Dance, Washington Post, "Mosquitoes are at three times their normal number in Maryland this summer," 5 July 2018 According to the National Pesticide Information Center, permethrin is not known to cause cancer or affect hormone systems. Scott Dance, baltimoresun.com, "Dealing with more bug bites than usual? Mosquitos are at 3 times their normal number in Maryland this summer.," 5 July 2018 Don’t use any pyrethrin- or permethrin-containing products on cats. Patty Khuly, miamiherald, "Protect your dogs and cats from swarms of mosquitoes. Here's how to do it.," 29 June 2018 Consider using tick repellents like DEET for skin and permethrin for clothing. Dennis Thompson, CBS News, "Ticks that carry Lyme disease are spreading fast," 13 July 2018 Spray clothing, socks and shoes with 0.5 percent permethrin products. Anna Groves, Milwaukee Journal Sentinel, "Wisconsin DHS reports first death by Rocky Mountain spotted fever," 10 July 2018 The clothes were pretreated with permethrin, a synthetic form of an insect-thwarting compound from the chrysanthemum flower. Amy Norton, chicagotribune.com, "To repel ticks, try insecticide-treated clothes this summer," 30 May 2018 To reduce mosquito numbers, the state program sprays a pesticide known as permethrin from the back of a pickup truck or, on the Eastern Shore, from the air. Scott Dance, Washington Post, "Mosquitoes are at three times their normal number in Maryland this summer," 5 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'permethrin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of permethrin

1975, in the meaning defined above

History and Etymology for permethrin

per- + methyl + pyrethrin

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Dictionary Entries near permethrin

permeate

permeation

per mensem

permethrin

Permiak

Permian

per mill

Statistics for permethrin

Last Updated

9 Sep 2018

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Time Traveler for permethrin

The first known use of permethrin was in 1975

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More Definitions for permethrin

permethrin

noun
per·meth·rin | \pər-ˈmeth-rən \

Medical Definition of permethrin 

: a synthetic pyrethroid pesticide C21H20Cl2O3 used especially against insects, ticks, and mites

More from Merriam-Webster on permethrin

Britannica.com: Encyclopedia article about permethrin

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