Organic Chemical
chlorpyrifos Audio
chlor·pyr·i·fos [ klawr-pir-uh-fos, klohr- ]
Subclass of:
Organothiophosphates
Definitions related to chlorpyrifos:
  • A synthetic organophosphate acetylcholinesterase inhibitor, reproduction toxicant, and neurotoxicant that is used as a pesticide. It is characterized as a highly toxic colorless, white, or light brown crystalline solid with a mild rotten egg odor, and exposure occurs by inhalation, ingestion, or contact.
    NCI
    U.S. National Cancer Institute, 2021
  • An organothiophosphate cholinesterase inhibitor that is used as an insecticide and as an acaricide.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • The organophosphorus agent chlorpyrifos.
    CDISC Terminology
    Clinical Data Interchange Standards Consortium (CDISC), 2021
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.