parathion(redirected from Parathion-methyl)
Also found in: Thesaurus, Medical, Encyclopedia.
A poisonous yellowish liquid organophosphate compound, C10H14NO5PS, used as an insecticide. Its use in the United States is highly restricted.
(Elements & Compounds) a slightly water-soluble toxic oil, odourless and colourless when pure, used as an insecticide. Formula: C10H14NO5PS
[C20: from para-1 + thio- + -on]
par•a•thi•on(ˌpær əˈθaɪ ɒn)
a deep brown to yellow, poisonous liquid, C10H14NO5PS, used as an insecticide.