ethion

noun
eth·​i·​on | \ ˈe-thē-ˌän How to pronounce ethion (audio) \

Definition of ethion

: a toxic organophosphate C9H22O4P2S4 used as an insecticide and acaricide

First Known Use of ethion

circa 1960, in the meaning defined above

History and Etymology for ethion

blend of eth- and thion-

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