lice Meaning, Definition & Usage

1. noun wingless usually flattened bloodsucking insect parasitic on warm-blooded animals
   louse; sucking louse.
   
2. noun a person who has a nasty or unethical character undeserving of respect
   dirt ball; insect; worm; louse.
   
3. noun any of several small insects especially aphids that feed by sucking the juices from plants
   plant louse; louse.
   
4. noun wingless insect with mouth parts adapted for biting; mostly parasitic on birds
   biting louse; louse; bird louse.
   

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