wingless usually flattened bloodsucking insect parasitic on warm-blooded animals

[ Syn: sucking louse ]

a person who has a nasty or unethical character undeserving of respect

[ Syn: worm , insect , dirt ball ]

any of several small insects especially aphids that feed by sucking the juices from plants

[ Syn: plant louse ]

wingless insect with mouth parts adapted for biting; mostly parasitic on birds

[ Syn: bird louse , biting louse ]