Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • transitive verb To rid (a person or an animal) of lice by physical or chemical means.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

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

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • verb free of lice

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

de- +‎ louse

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