An insecticide that has adverse neurological effects. Also known as Dursban. Chlorpyrifos causes weakness, vomiting, diarrhea and other ill effects in children. It can also cause blurred vision and memory loss. Anyone can be exposed when the chemical is applied in a backyard or a building and through residue on fruits or other foods. Dursban was in hundreds of products including some of Raid sprays, Hartz yard and kennel flea spray, and Black Flag liquid roach and ant killer. The US Environmental Protection Agency (EPA) banned chlorpyrifos from domestic use. The manufacture of chlorpyrifos for most residential uses and all uses where children could be exposed was to halt by December 2000 and its use for termite control was to be phased out by December 2001 in all buildings used by children.

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chlor·pyr·i·fos -'pir-ə-fäs, -'pī-rə- n a toxic crystalline organophosphate pesticide C9H11Cl3NO3PS that inhibits acetylcholinesterase and is used to control insect pests and ticks

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chlor·py·ri·fos (klor-piґrĭ-fos) an organophosphorus insecticide used to disinfect plants; accidental overexposure can cause extrapyramidal effects such as salivation, tremors, dizziness, and eventually seizures, coma, and death.

Medical dictionary. 2011.

Look at other dictionaries:

  • Chlorpyrifos — I …   Wikipedia

  • Chlorpyrifos — Strukturformel Allgemeines Name Chlorpyrifos Andere Namen …   Deutsch Wikipedia

  • chlorpyrifos — noun Etymology: chlor + pyridine + fos (alteration of phosphorus) Date: 1970 a toxic crystalline organophosphate pesticide C9H11Cl3NO3PS that inhibits acetylcholinesterase and is used to control insect pests and ticks …   New Collegiate Dictionary

  • chlorpyrifos — /klawr pir euh fos , klohr /, n. a broad spectrum insecticide, C9H11Cl3NO3PS, used on lawns and ornamental plants. [CHLOR 2 + PYRI(DINE) + fos, for PHOSPHORUS] * * * …   Universalium

  • chlorpyrifos — noun A crystalline organophosphate insecticide that inhibits acetylcholinesterase …   Wiktionary

  • chlorpyrifos — chlor·pyr·i·fos …   English syllables

  • chlorpyrifos — /klɔpaɪˈrifɒs/ (say klawpuy reefos) noun an organophosphate pesticide, C9H11Cl3NO3PS, used on some crops and in flea collars for animals. {chlor(ine) + pyr(idil) + phos(phorothioate)} …   Australian English dictionary

  • chlorpyrifos — noun a common organophosphate insecticide • Hypernyms: ↑organophosphate …   Useful english dictionary

  • Reference dose — A reference dose is the United States Environmental Protection Agency s maximum acceptable oral dose of a toxic substance. Reference doses are most commonly determined for pesticides. The EPA defines an oral reference dose (abbreviated RfD) as:… …   Wikipedia

  • Organophosphate — General chemical structure of an organophosphate An organophosphate (sometimes abbreviated OP) is the general name for esters of phosphoric acid. Phosphates are probably the most pervasive organophosphorus compounds. Many of the most important… …   Wikipedia

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