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.
That means mowing at the correct height for your species of grass, and fertilizing and irrigating properly. Consider the use of biological pesticides. Arricca Elin Sansone, Southern Living, 27 July 2025 Yet before a separate, marijuana testing law took effect in 2020, dispensaries had no responsibility to test their products for potency and things that could make people ill, like heavy metals, pesticides and mold. Ray Stern, AZCentral.com, 24 July 2025 Smoke Were in the military Were exposed to heavy metals or pesticides Have a family member with ALS Are male A neurologist (a doctor who specializes in diseases of the brain and nervous system) can diagnose ALS. Janelle McSwiggin, Health, 20 July 2025 While pesticides are effective for managing ants, potted plants are usually at such a small scale that the non-chemical approaches, such as repotting or soaking the pot in water, often make the most sense, says Liesch. Anne Readel, Better Homes & Gardens, 18 July 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 6 Aug. 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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