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.
The letter makes presumptions about herbicides and pesticides that do not line up with its proposal outlined on a website detailing the training center project, the statement said. Kenneth R. Gosselin, Hartford Courant, 21 June 2026 Since the land was agricultural, Soriano worries that pesticides or chemicals in the soil might harm her daughters. Maya Wilkins, Chicago Tribune, 21 June 2026 The most common application is in pesticides. Quincy Bulin, Southern Living, 20 June 2026 Then, remember, not all pests even require a pesticide, organic or not, to be eradicated. Anthony Reardon, Kansas City Star, 20 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 22 Jun. 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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