organophosphate

https://doi.org/10.1351/goldbook.11979
Organic ester of phosphoric acid.
Note: These are often acetylcholinesterase inhibitors used as pesticides or prohibited agents in chemical warfare.
Source:
PAC, 2015, 87, 841. (IUPAC Glossary of terms used in neurotoxicology (IUPAC Recommendations 2015)) on page 893 [Terms] [Paper]