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.
Always start with non-chemical control measures before escalating to a pesticide. Miri Talabac, Baltimore Sun, 23 Jan. 2026 The company estimates its growing process uses 95% less water and 94% less land than conventional farming, and requires no herbicides, fungicides, or pesticides. Elaine Pofeldt, Forbes.com, 22 Jan. 2026 From 2016 to 2023, more than 12 million pounds of the pesticide were applied in these counties, according to those data. Tony Briscoe, Los Angeles Times, 22 Jan. 2026 The pesticide d-CON gave away American flag decals with purchases. Peter Larsen, Oc Register, 21 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 26 Jan. 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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