Webster 1913 Edition
lȳs; akin to D.
luus; perh. so named because it is destructive, and akin to E.
Any one of numerous species of small, wingless, suctorial, parasitic insects belonging to a tribe (
Pediculina), now usually regarded as degraded Hemiptera. To this group belong of the lice of man and other mammals;
as, the head. See
louseof man (
Pediculus capitis), the body
Pediculus vestimenti), and the crab
Phthirius pubis), and many others
Cattle louse, etc., under
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
Any one of the numerous species of aphids, or plant lice. See
☞ The term is also applied to various other parasites; as, the whale louse, beelouse, horse louse.
a parasitic dipterous insect of the group Pupipara. Some of them are wingless, as the bee louse.–
any one of numerous species of mites which infest mammals and birds, clinging to the hair and feathers like lice. They belong to
Mycoptes, and several other genera.
To clean from lice.“You sat and loused him.”
Webster 1828 Edition
A small insect of the genus Pediculus. It has six feet, two eyes, with long feelers and a sting in the mouth. It infests the bodies of men and other animals; but different animals are infested with different species.