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.
An unapproved household Ortho pesticide sprayer was stored in the back of the facility. Veronica Fernandez-Alvarado january 30, Sacbee.com, 30 Jan. 2026 Cleaning fruit and vegetables can help remove germs and pesticides. Cynthia Sass, Health, 29 Jan. 2026 Joe Rogan suggested on his podcast last March that the pesticide DDT, rather than the virus, deserved blame for symptoms attributed to polio. Tom Bartlett, The Atlantic, 28 Jan. 2026 The numbers have recovered significantly since the suspension of the use of pesticides like DDT in the 1970s. Alan Gionet, CBS News, 27 Jan. 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 6 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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