delouse

verb

de·​louse (ˌ)dē-ˈlau̇s How to pronounce delouse (audio)
-ˈlau̇z
deloused; delousing; delouses

transitive verb

: to remove lice from

Examples of delouse in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Upon their arrival to Ellis Island, they were promptly doused in kerosene to delouse them after the voyage. Rachel Linden, PEOPLE, 4 Oct. 2025 He was fingerprinted, photographed, made to strip and told to brace himself for a tub of delousing liquid. Lizzie Presser, ProPublica, 16 Oct. 2019 Taking the opposing view is Alexios Mantzarlis, the head of the International Fact-Checking Network at the Poynter Institute, who is working with Facebook to delouse the News Feed of falsehoods. Derek Thompson, The Atlantic, 10 May 2018

Word History

First Known Use

circa 1919, in the meaning defined above

Time Traveler
The first known use of delouse was circa 1919

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Cite this Entry

“Delouse.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/delouse. Accessed 6 Jul. 2026.

Kids Definition

delouse

verb
de·​louse (ˈ)dē-ˈlau̇s How to pronounce delouse (audio)
-ˈlau̇z
deloused; delousing
: to remove lice from

Medical Definition

delouse

transitive verb
deloused; delousing
: to remove lice from
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