pesticide

noun

pes·​ti·​cide ˈpe-stə-ˌsīd How to pronounce pesticide (audio)
Synonyms of pesticidenext
: 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.
Among the 33 chemicals the EPA will require water utilities to test for are seven PFAS, or forever chemicals, and three pesticide residues. Susanne Rust follow, Los Angeles Times, 30 June 2026 For the past two years, seed oils, sugary drinks, pesticides, pharmaceuticals, and childhood vaccines — and the industries behind them — have been subjected to unprecedented scrutiny. Lev Facher, STAT, 30 June 2026 Modales is also one of only a handful of Michigan wineries to achieve USDA organic certification for two of its vineyards, meaning their grapes are grown without synthetic herbicides, fungicides, pesticides or fertilizers. Anna Lee Iijima, Chicago Tribune, 29 June 2026 Over the past decade, vertical farming has grown explosively - in concert with a global quest for fresh, organic, pesticide free vegetables, grown locally. Sabbir Rangwala, Forbes.com, 29 June 2026 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 3 Jul. 2026.

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
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