Louse
WordNet
noun
(1) Wingless usually flattened bloodsucking insect parasitic on warm-blooded animals
(2) Wingless insect with mouth parts adapted for biting; mostly parasitic on birds
(3) Any of several small insects especially aphids that feed by sucking the juices from plants
(4) A person who has a nasty or unethical character undeserving of respect
WiktionaryText
Etymology
From < < .
Noun
- A small parasitic wingless insect of the order Phthiraptera.
Verb
- To remove lice from the body of a person or animal; to delouse