Available Definitions:
1) n. - pl. of Louse.
2) n. - Any one of numerous small mandibulate insects, mostly parasitic on birds, and feeding on the feathers. They are known as Mallophaga, or bird lice, though some occur on the hair of mammals. They are usually regarded as degraded Pseudoneuroptera. See Mallophaga .
3) n. - Any one of the numerous species of aphids, or plant lice. See Aphid .
4) n. - Any small crustacean parasitic on fishes. See Branchiura , and Ichthvophthira.
5) v. t. - To clean from lice.