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organophosphate

American  
[awr-guh-noh-fos-feyt, awr-gan-uh‑] / ˌɔr gə noʊˈfɒs feɪt, ɔrˌgæn ə‑ /

noun

  1. Biochemistry. any of a variety of organic compounds that contain phosphorus and often have intense neurotoxic activity: originally developed as nerve gases, now widely used as insecticides and fire retardants.


organophosphate British  
/ ɔːˌɡænəʊˈfɒsfeɪt /

noun

  1. any of a group of organic compounds containing phosphate groups and used as a pesticide

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of organophosphate

First recorded in 1945–50; organo- + phosphate

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Another, an organophosphate called tributyl phosphate, was right at the limit, according to a Navy toxicologist’s review of the findings.

From The Wall Street Journal Sep. 14, 2025

About 20% of conventional blueberries had residues of an organophosphate that the EPA considers of particular risk to children.

From Seattle Times Apr. 29, 2024

They identified chemicals that selectively damaged oligodendrocytes belong to two classes: organophosphate flame retardants and quaternary ammonium compounds.

From Science Daily Mar. 25, 2024

Most of the pesticides detected on the Dirty Dozen are legal, but one exception is acephate, an organophosphate insecticide that is essentially prohibited for use on green beans but is still found on them.

From Salon Mar. 20, 2024

Some require as little as 6 grams per hectare, compared with several kilograms of the older organophosphate and carbonate pesticides.

From Science Magazine Apr. 1, 2021

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