methyl parathion


Definition of methyl parathion

: a highly toxic synthetic organophosphate insecticide C8H10NO5PS Methyl parathion, a restricted-use organophosphate insecticide that affects the central nervous system, is formulated only for outdoor use on cotton, soybeans, and other crops.Chemical & Engineering News

Examples of methyl parathion in a Sentence

Recent Examples on the Web At least 144 containers were labeled as methyl parathion and had liquids remaining in the bottoms., "Environmental problems plague the barrel reconditioning business," 15 Feb. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'methyl parathion.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of methyl parathion

1957, in the meaning defined above

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The first known use of methyl parathion was in 1957

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Cite this Entry

“Methyl parathion.” Dictionary, Merriam-Webster, Accessed 30 Oct. 2020.

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methyl parathion


Medical Definition of methyl parathion

: a potent synthetic organophosphate insecticide C8H10NO5PS that is more toxic than parathion

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