Definition of parathion in English:

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Pronunciation: /ˌparəˈθʌɪən/


[mass noun]
A highly toxic synthetic organophosphorus compound containing phosphorus and sulphur, used as an agricultural insecticide.
Example sentences
  • These pesticides include the insecticides methyl parathion, lindane and DDT.
  • The organophosphate type of insecticides (examples parathion and malathion) vary greatly in their toxicity and hazard to man.
  • Some prominent examples are the insecticides parathion, fenitrothion, malathion, and phosphamidon.


1940s: from para-1 (sense 2) + thio- + -on.

For editors and proofreaders

Line breaks: para|thion

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