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.
Alien Exotics' prerolls, for example, contained mold and two pesticides – chlordane and chlorfenapyr – in addition to being 16 times the federal limit for THC. Gina Lee Castro, jsonline.com, 19 Feb. 2026 From the beginning, Calderon said the firm’s project was rooted in honoring the way their ancestors cultivated cotton without pesticides and with full transparency throughout the supply chain. Angela Velasquez, Sourcing Journal, 18 Feb. 2026 Bayer contends that federal pesticide laws preempt states from adopting additional labeling for products and thus prohibit failure-to-warn lawsuits brought under state laws. David A. Lieb, Fortune, 18 Feb. 2026 The company simultaneously has been lobbying state legislatures to shield pesticide manufacturers from state failure-to-warn lawsuits when their products follow federal labeling requirements. David A. Lieb, Los Angeles Times, 17 Feb. 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 26 Feb. 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
Last Updated: - Updated example sentences
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