pesticide

noun

pes·​ti·​cide ˈpe-stə-ˌsīd How to pronounce pesticide (audio)
: 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.
Most of the global production of castor seed is concentrated in India, where the crop thrives in semi-arid regions with minimal water, fertilizer, or pesticide inputs. Dianne Plummer, Forbes.com, 20 Sep. 2025 Urban streams accumulate the waste of cities—runoff of pesticides, herbicides, oil, and whatever else. Literary Hub, 19 Sep. 2025 Growers must meet more requirements to be certified organic, such as restrictions on pesticides and fertilizers. Nino Paoli, Fortune, 19 Sep. 2025 One reason is climate change – specifically, stronger hurricanes, more frequent fires and the use of more pesticides. Diana Olick, CNBC, 18 Sep. 2025 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 20 Sep. 2025.

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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