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.
Runoff from these sites often contains toxic pesticides, contaminating water used for drinking, bathing and irrigation. Kathryn Palmer, USA Today, 25 Aug. 2025 The leader should not be criticized; a vast conspiracy threatens the movement; triumph is ongoing, even if the movement’s crusade against dangerous pesticides and heavy metals in the soil and drinking water has culminated in the election of a President who apparently loves all that stuff. Jessica Winter, New Yorker, 21 Aug. 2025 According to Reuters, at least one version of the report stopped short of suggesting any changes to how pesticides and other agrochemicals are regulated or how they get approved. Chloe Sorvino, Forbes.com, 20 Aug. 2025 Widespread pesticide use, mainly for agriculture, is perhaps the most worrisome threat of all. Bruce Beehler, Baltimore Sun, 17 Aug. 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 1 Sep. 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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