Synonyms of pesticidenext
: an agent used to destroy pests

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.
The California Department of Public Health makes explicit it is not yet known whether pesticides or other chemicals created an exposure risk in Ladera Ranch. — Julia Vargas Jones, CNN Money, 20 Sep. 2026 Gonzalo also grows vanilla, and Christiansen talks excitedly about the tiny melipona bee involved in its propagation and the lengths the farm goes to protect its ecosystem from pesticides. — Anna Cafolla, Vogue, 19 Sep. 2026 Detox Denim eliminates synthetic pesticides and harsh chemicals and prioritizes materials and designs engineered for longevity. — Angela Velasquez, Footwear News, 18 Sep. 2026 Think about environmental regulations, and limits on and banning certain pesticides. — Laina Gustafson, Christian Science Monitor, 17 Sep. 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 29 Sep. 2026.

Kids Definition

pesticide

noun
: a substance used to destroy pests
pesticidal
ˌpes-tə-ˈsīd-ᵊl
adjective

Medical Definition

pesticide

noun
: an agent used to destroy pests

More from Merriam-Webster on pesticide

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster