a highly poisonous compound, CHONPS, commercially a colorless to dark-brown liquid, used as an agricultural insecticide
Origin of parathionpara- + thion(ic)
A poisonous yellowish liquid organophosphate compound, C10H14NO5PS, used as an insecticide. Its use in the United States is highly restricted.
Origin of parathionpara–1 + thio(phosphate), phosphoric acid salt (thio– + phosphate) + –on3.
- O,O-Diethyl-O-4-nitro-phenylthiophosphate, a powerful, dangerously toxic insecticide.