malathion
noun
mal·a·thi·on
ˌma-lə-ˈthī-ən 
-ˌän
: an organophosphate broad-spectrum insecticide C10H19O6PS2 that is considerably less toxic to mammals than parathion
Examples of malathion in a Sentence
Recent Examples on the Web
Among the violations the state also mentioned in a 2024 finding: Full Spectrum didn't perform valid quality-control checks, resulting in poor results for tests of the pesticide malathion.
—
Ray Stern, AZCentral.com, 24 July 2025
These include benzyl benzoate lotion, malathion lotion, and lindane lotion.107
Oral Medications
People sometimes need oral medication alone or in combination with a topical medication to treat scabies.
—Sarah Bradley, Health, 22 Mar. 2025
He was hit by the malathion, his lawsuit claimed, and went blind.
—Patt Morrison, Los Angeles Times, 15 Oct. 2024
But making the plant respond differently to each chemical—like blue for acephate and purple for malathion—is much harder.
—WIRED, 30 Oct. 2023
See All Example Sentences for malathion
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Ray Stern, AZCentral.com, 24 July 2025
These include benzyl benzoate lotion, malathion lotion, and lindane lotion.107
Oral Medications
People sometimes need oral medication alone or in combination with a topical medication to treat scabies.
—Sarah Bradley, Health, 22 Mar. 2025
He was hit by the malathion, his lawsuit claimed, and went blind.
—Patt Morrison, Los Angeles Times, 15 Oct. 2024
But making the plant respond differently to each chemical—like blue for acephate and purple for malathion—is much harder.
—WIRED, 30 Oct. 2023
See All Example Sentences for malathion
Cite this Entry
“Malathion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/malathion. Accessed 29 Oct. 2025.
Copy CitationKids Definition
malathion
noun
mal·a·thi·on
ˌmal-ə-ˈthī-ən
-ˌän
: a poisonous insecticide that is broken down in nature
Medical Definition
malathion
noun
mal·a·thi·on
ˌmal-ə-ˈthī-ən, -ˌän
: a thiophosphate insecticide C10H19O6PS2 with a lower mammalian toxicity than parathion
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