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.
Nearly 90 percent of respondents reported injuries or illness on the job — afflictions that spanned heat stroke to exposure to pesticides. Ashley Miznazi, Miami Herald, 2 May 2026 Epsom salt is also not registered or labeled as a pesticide. Leanne Potts, Better Homes & Gardens, 1 May 2026 Household pesticides may not be used in a food facility, according to the citation. Veronica Fernandez-Alvarado may 1, Sacbee.com, 1 May 2026 Launched in 1996, the 2,100-square-foot rooftop garden grows herbs, fruits, vegetables, and edible blossoms without the use of herbicides or pesticides. Condé Nast, Condé Nast Traveler, 30 Apr. 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 4 May. 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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