单词	pyrethroid
释义	pyrethroid noun py·​re·​throid pī-ˈrē-ˌthrȯid  -ˈre-  : any of various synthetic compounds that are related to the pyrethrins and resemble them in insecticidal properties pyrethroid adjective Example Sentences Recent Examples on the Web Please note that the product contains gamma-cyhalothrin, a potent broad-spectrum pyrethroid pesticide that will also kill other insects such as ants, fleas and roaches. Jamie Kim, Good Housekeeping, 29 Apr. 2022 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 See More Word History Etymology pyrethrin + -oid First Known Use 1949, in the meaning defined above Medical Definition pyrethroid noun py·​re·​throid pī-ˈrē-ˌthrȯid  -ˈreth-ˌrȯid  : any of various synthetic compounds that are related to the pyrethrins and resemble them in insecticidal properties
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