delouse

The English word “delouse” has 3 meanings listed here.

verb

To remove lice from.
To apply insecticides or insect repellents to, in order to be sure that no lice or other parasites are present.
To remove malicious software, such as viruses, trojans, spyware, or worms, from.

From de- + louse.

Keep exploring: in the interactive dictionary every word of a definition is a link. Open “delouse” there

The English dictionary on Glottosphere has 650,529 entries with a page. Browse the English dictionary.

Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.