pyrethroid

noun
py·​re·​throid | \ pī-ˈrē-ˌthrȯid How to pronounce pyrethroid (audio) , -ˈre- How to pronounce pyrethroid (audio) \

Definition of pyrethroid

: any of various synthetic compounds that are related to the pyrethrins and resemble them in insecticidal properties

Other Words from pyrethroid

pyrethroid adjective

Examples of pyrethroid in a Sentence

Recent Examples on the Web For many, application of a pyrethroid insecticide at precise timing for the species and its life cycle will help. Neil Sperry, San Antonio Express-News, 14 May 2021 Flumethrin is a pyrethroid insecticide that is only used in one product: Seresto. Johnathan Hettinger, USA TODAY, 8 Apr. 2021 But the pesticides, like pyrethroid and neonicotinoid, are toxic to bees. Theresa Machemer, Smithsonian Magazine, 29 July 2020 Toxicology reports of the Canadian victims confirmed the presence of pyrethroid and organophosphate - two agents commonly found in fumigation products. Barnini Chakraborty, Fox News, 20 Sep. 2019 According to a 2018 report by ABC News, bug sprays contain active ingredients called pyrethroids, which penetrate the insect’s nervous system to stun and kill them. Samantha Lauriello, Health.com, 17 July 2019 According to LiveScience, bug sprays contain an active ingredient called pyrethroids that interferes with nerve signaling in humans. Leada Gore | Lgore@al.com, al.com, 17 July 2019 The Bug Squad recommends using a synthetic pyrethroid spray to kill these pests in your home. Elizabeth Gulino, House Beautiful, 25 Apr. 2019 Pyrethrins and pyrethroids also work by interfering with sodium pores. Karen Weintraub, Scientific American, 1 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pyrethroid.' 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 pyrethroid

1949, in the meaning defined above

History and Etymology for pyrethroid

pyrethrin + -oid

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Time Traveler for pyrethroid

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The first known use of pyrethroid was in 1949

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Dictionary Entries Near pyrethroid

pyrethrin

pyrethroid

pyrethrolone

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Cite this Entry

“Pyrethroid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pyrethroid. Accessed 2 Dec. 2021.

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More Definitions for pyrethroid

pyrethroid

noun
py·​re·​throid | \ pī-ˈrē-ˌthrȯid How to pronounce pyrethroid (audio) , -ˈreth-ˌrȯid How to pronounce pyrethroid (audio) \

Medical Definition of pyrethroid

: any of various synthetic compounds that are related to the pyrethrins and resemble them in insecticidal properties

Other Words from pyrethroid

pyrethroid adjective

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