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pesticide

noun

pes·​ti·​cide ˈpe-stə-ˌsīd How to pronounce pesticide (audio)
: an agent used to destroy pests
pesticidal adjective

Examples of pesticide in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
On top of that, if a farmer intends to use a drone with a spray to spread chemicals like pesticides or fertilizers, the operator is required to obtain a pesticide license from the Office of the Indiana State Chemist. Noe Padilla, IndyStar, 21 Nov. 2025 Two residential pesticides were beneath the rice cooker in the kitchen. Veronica Fernandez-Alvarado, Sacbee.com, 21 Nov. 2025 Instead, Kennedy pointed to environmental factors such as pesticides and aluminum in vaccines as possible culprits, and said the health agency was planning to conduct research into food allergies and its causes. Adrianna Rodriguez, USA Today, 18 Nov. 2025 However, the flip side is that some are so powerful that these pesticides also contribute to the decline in the abundance of insects and species. Jasmine Laws, MSNBC Newsweek, 14 Nov. 2025 See All Example Sentences for pesticide

Word History

First Known Use

circa 1925, in the meaning defined above

Time Traveler
The first known use of pesticide was circa 1925

Browse Nearby Words

Cite this Entry

“Pesticide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pesticide. Accessed 28 Nov. 2025.

Kids Definition

pesticide

noun
pes·​ti·​cide ˈpes-tə-ˌsīd How to pronounce pesticide (audio)
: a substance used to destroy pests
pesticidal
ˌpes-tə-ˈsīd-ᵊl
adjective

Medical Definition

pesticide

noun
pes·​ti·​cide ˈpes-tə-ˌsīd How to pronounce pesticide (audio)
: an agent used to destroy pests
Last Updated: - Updated example sentences
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