Definition of malathion
: an organophosphate broad-spectrum insecticide C10H19O6PS2 that is considerably less toxic to mammals than parathion
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Recent Examples of malathion from the Web
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Many are also insusceptible to later pesticides like dieldrin, malathion and deltamethrin.
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According to the CDC, the mosquitoes carrying the disease in Puerto Rico became resistant to the first-choice pesticide permethrin and also to malathion.
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Sold as Dibrom, naled is an organophosphate, a category of chemicals that also includes malathion; both are widely used to control mosquitoes.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'malathion.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of malathion
from Malathion, a trademark
Medical Dictionary
medical Definition of malathion
: a thiophosphate insecticide C10H19O6PS2 with a lower mammalian toxicity than parathion
Learn More about malathion
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Britannica.com: Encyclopedia article about malathion
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