NCIt definition : A synthetic organic thiophosphate compound and organophosphate acetylcholinesterase
inhibitor and neurotoxicant that is used as a pesticide. It is characterized as a
persistent and relatively volatile colorless, needle-shaped crystalline solid, and
exposure occurs by inhalation, ingestion, or contact.;
Alternative definition : CDISC: The organophosphorus agent azinphos-ethyl.;