dimethoate

[ dahy-meth-oh-eyt ]
/ daɪˈmɛθ oʊˌeɪt /

noun Chemistry.

a highly toxic crystalline compound, C5H12NO3PS2, used as an insecticide.

Origin of dimethoate

1955–60; probably dimeth(yl) + -(thi)oate, components of the chemical name