louse
noun
1. wingless usually flattened bloodsucking insect parasitic on warm-blooded animals
Definition categories: animal, insect
2. a person who has a nasty or unethical character undeserving of respect
Definition categories: person
3. any of several small insects especially aphids that feed by sucking the juices from plants
Definition categories: animal, homopteran
4. wingless insect with mouth parts adapted for biting; mostly parasitic on birds
verb
1. To remove lice from the body of a person or animal; to delouse.