An organic chemical containing phosphorus, commonly used in insecticides and nerve warfare agents.

Pesticide chemical that contains phosphorus; used to control insects. Organophosphates are short-lived, but some can be toxic when first applied.

Class of insecticides derived from phosphoric acid esters that act as inhibitors of the enzyme cholinesterase.

Pesticides that contain phosphorus; shortlived, but some can be toxic when first applied.