louse
n 1: wingless usually flattened blood-sucking insect parasitic on
warm-blooded animals [syn: {sucking louse}]
2: has a nasty or unethical character undeserving of respect
[syn: {worm}, {insect}, {dirt ball}]
3: any of several small insects esp. aphids that feed by
sucking the juices from plants [syn: {plant louse}]
4: wingless insect with mouth parts adapted for biting; mostly
parasitic on birds [syn: {bird louse}, {biting louse}]