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.
It is not grown with herbicides or pesticides to ensure quality and safety. Bestreviews, Chicago Tribune, 13 Feb. 2026 Alongside calls for research on cell-phone-signal effects on health and vaccine injuries, the report went light on investigating pesticides and the food industry, disappointing some environmental figures. Dan Vergano, Scientific American, 13 Feb. 2026 Ecologist Greta Wengert stared down the pockmarked hillside at a pile of pesticide sprayers left behind, long after the raid. Rachel Becker, Los Angeles Times, 12 Feb. 2026 The same chemicals found in pipes, pesticides and floor tiles are also present in some wigs, braiding hair and hair extensions, a new study published Wednesday in the journal Environment & Health found. Claretta Bellamy, NBC news, 12 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 16 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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