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dimethoate

[dahy-meth-oh-eyt]
noun Chemistry.
  1. a highly toxic crystalline compound, C5H12NO3PS2, used as an insecticide.
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Origin of dimethoate

1955–60; probably dimeth(yl) + -(thi)oate, components of the chemical name
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018