Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A poisonous yellowish liquid organophosphate compound, C10H14NO5PS, used as an insecticide. Its use in the United States is highly restricted.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun O,O-Diethyl-O-4-nitro-phenylthiophosphate, a powerful, dangerously toxic insecticide.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a colorless and odorless toxic oil used as an insecticide

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[para– + thio(phosphate), phosphoric acid salt (thio– + phosphate) + –on.]

Examples

  • * After the ban, it was replaced by parathion, which is really unsafe.

    State of fear

  • So for example the pesticides made of organophosphates (parathion and malathion) and organochlorides (such as DDT) permanently deactivate an enzyme that is essential to the nervous system.

    THE STORY OF STUFF

  • So for example the pesticides made of organophosphates (parathion and malathion) and organochlorides (such as DDT) permanently deactivate an enzyme that is essential to the nervous system.

    THE STORY OF STUFF

  • So for example the pesticides made of organophosphates (parathion and malathion) and organochlorides (such as DDT) permanently deactivate an enzyme that is essential to the nervous system.

    THE STORY OF STUFF

  • So for example the pesticides made of organophosphates (parathion and malathion) and organochlorides (such as DDT) permanently deactivate an enzyme that is essential to the nervous system.

    THE STORY OF STUFF

  • In 1974, the US Environmental Protection Agency licensed the nerve gas parathion trapped into nylon bubbles the size of pollen particles.

    Honeybees in Danger

  • Unfortunately, this made no difference to EPA, which failed to ban the microencapsulated parathion that is so deadly to honeybees.

    Honeybees in Danger

  • The foraging bee, if alive after its visit to the beautiful white flowers of almonds, for example, laden with invisible spheres of asphyxiating gas, would be bringing back to its home pollen and nectar mixed with parathion.

    Honeybees in Danger

  • Unfortunately, this made no difference to EPA, which failed to ban the microencapsulated parathion that is so deadly to honeybees. '

    Honeybees in Danger

  • An academic expert, Carl Johansen, professor of entomology at Washington State University in Pullman, Washington, called the microencapsulated methyl parathion "the most destructive bee poisoning insecticide ever developed."

    Honeybees in Danger

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