NCIt definition : 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.;
Alternative definition : CDISC: The organophosphorus agent chlorpyrifos.;