Definitions of louse:
  • noun:   wingless usually flattened blood-sucking insect parasitic on warm-blooded animals
  • noun:   any of several small insects especially aphids that feed by sucking the juices from plants
  • noun:   a person who has a nasty or unethical character undeserving of respect
  • noun:   wingless insect with mouth parts adapted for biting; mostly parasitic on birds

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