|—n , pl lice, louses|
|1.||any wingless bloodsucking insect of the order Anoplura: includes Pediculus capitis (head louse), Pediculus corporis (body louse), and the crab louse, all of which infest manRelated: pedicular|
|2.||biting louse, bird louse any wingless insect of the order Mallophaga, such as the chicken louse: external parasites of birds and mammals with biting mouthparts|
|3.||any of various similar but unrelated insects, such as the plant louse and book louse|
|4.||slang an unpleasant or mean person|
|5.||to remove lice from|
|[Old English lūs; related to Old High German, Old Norse lūs]|
n. pl. lice (līs)
Any of numerous small, flat-bodied, wingless biting or sucking insects of the orders Mallophaga or Anoplura, many of which are external parasites on humans.
any of about 2,900 species of small, wingless insects (order Phthiraptera), worldwide in distribution, that have chewing mouthparts, a flattened body, and shortened front legs used to transport food to the mouth. Chewing lice may be from 1 to 5 mm (0.039 to 0.19 inch) in length, and their colour ranges from white to black. The life cycle is spent on the feathers or hair of the host, though one genus lives in the throat pouches of pelicans and cormorants.
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