ro·​den·​ti·​cide | \ rō-ˈden-tə-ˌsīd How to pronounce rodenticide (audio) \

Definition of rodenticide

: an agent that kills, repels, or controls rodents

Examples of rodenticide in a Sentence

Recent Examples on the Web Reform California said the rodent population can be controlled using the most effective tools for pest control, but Los Angeles discontinued use of second-generation anticoagulant rodenticides in 2014, a move the group claims that led to the spike. Fox News, "Los Angeles, California cities 'overrun by rodents' that pose public health epidemic, study says," 18 July 2019 The Farallones rodenticide drop would occur in the late fall of 2020 at the earliest, and would require approval by the Environmental Protection Agency and the National Oceanic and Atmospheric Administration. Laura Newberry,, "The U.S. wants to dump 1.5 tons of rat poison on the Farallon Islands. Biologists say it’s for the best," 7 July 2019 But Bay Area conservationists are worried that the poison, an increasingly controversial rodenticide called brodifacoum, will kill other species and make its way up the food chain. Rosanna Xia,, "Plan to dump rat poison on Farallon Islands questioned by California Coastal Commission," 10 July 2019 Reform California, mostly known for seeking greater government accountability and opposing taxes, released the report as legislation is advancing to mostly ban second-generation anticoagulant rodenticides, rat poisons used by licensed exterminators. San Diego Union-Tribune, "Column: The legislative fight behind rat infestation concerns in California," 19 July 2019 An ever-growing number of rodents in California -- particularly in Los Angeles -- is being fueled by a spiking homeless population and restrictions on rodenticides that are risking a public health crisis, according to a study released Tuesday. Fox News, "Los Angeles, California cities 'overrun by rodents' that pose public health epidemic, study says," 18 July 2019 Should the poison bait drift into the ocean, the rodenticide would likely not show up at detectable levels in the water and near-shore fish and marine invertebrates, the agency states. Will Houston, The Mercury News, "Bay Area critics decry Fed’s plan to use banned rodent poison on Farallon Islands," 8 July 2019 Some commissioners were concerned about the 120-day lifespan of the rodenticide and its potential to pollute soils, nearby waters and wildlife. Will Houston, The Mercury News, "‘Like dropping a nuclear bomb on this island’: Feds delay Farallon Islands poison airdrop bid," 11 July 2019 Without owls, Caliman says, plantation managers would need to buy rodenticides worth up to $4 per hectare annually; to lure the birds, Sinar Mas has installed 26,000 artificial nest boxes on Sumatra. Dyna Rochmyaningsih, Science | AAAS, "Courting controversy, scientists team with industry to tackle one of the world’s most destructive crops," 11 July 2019

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

1903, in the meaning defined above

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Statistics for rodenticide

Last Updated

27 Sep 2019

Time Traveler for rodenticide

The first known use of rodenticide was in 1903

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More Definitions for rodenticide


ro·​den·​ti·​cide | \ rō-ˈdent-ə-ˌsīd How to pronounce rodenticide (audio) \

Medical Definition of rodenticide

: an agent that kills, repels, or controls rodents

More from Merriam-Webster on rodenticide

Rhyming Dictionary: Words that rhyme with rodenticide Encyclopedia article about rodenticide

Comments on rodenticide

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to spread as a report or rumor

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