organophosphate

noun

or·​gan·​o·​phos·​phate ˌȯr-gə-nō-ˈfäs-ˌfāt How to pronounce organophosphate (audio)
ȯr-ˌga-nō-
: an organophosphorus compound (such as a pesticide)
organophosphate adjective

Examples of organophosphate in a Sentence

Recent Examples on the Web
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Contact pesticides found on blueberries include cypermethrin (23% of samples), the PFAS pesticide bifenthrin (19%) and two organophosphates: phosmet, which targets the immune system, and malathion, which has been linked to cancer. Sandee Lamotte, CNN Money, 9 June 2026 According to the new study, certain forms of iron oxyhydroxide nanominerals can catalyze the degradation of organophosphate esters (OPEs), chemical additives used in plastics as flame retardants and softeners. Neetika Walter, Interesting Engineering, 4 Nov. 2025 As noted by the United States Environmental Protection Agency (EPA), pesticides such as organophosphates and carbamates affect the nervous system. Tom Gauthier, Forbes.com, 22 May 2025 But those perfect plants don’t grow that way without assistance; they are sprayed routinely with fungicides and insecticides, especially organophosphates, which kill insects by interfering with their nervous systems. Maryn McKenna, Scientific American, 13 Feb. 2025 See All Example Sentences for organophosphate

Word History

First Known Use

1945, in the meaning defined above

Time Traveler
The first known use of organophosphate was in 1945

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Cite this Entry

“Organophosphate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/organophosphate. Accessed 28 Jun. 2026.

Medical Definition

organophosphate

noun
or·​gan·​o·​phos·​phate ȯr-ˌgan-ə-ˈfäs-ˌfāt How to pronounce organophosphate (audio)
: an organophosphorus compound
organophosphate adjective
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