cattle louse 名詞



 Louse n.; pl. Lice   Zool.
 1. 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 louse of man (Pediculus capitis), the body louse (Pediculus vestimenti), and the crab louse (Phthirius pubis), and many others. See Crab louse, Dog louse, Cattle louse, etc., under Crab, Dog, etc.
 2. 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. Any one of the numerous species of aphids, or plant lice. See Aphid.
 4. Any small crustacean parasitic on fishes. See Branchiura, and Ichthvophthira.
 Note: ☞ The term is also applied to various other parasites; as, the whale louse, beelouse, horse louse.
 Louse fly Zool., a parasitic dipterous insect of the group Pupipara. Some of them are wingless, as the bee louse.
 Louse mite Zool., any one of numerous species of mites which infest mammals and birds, clinging to the hair and feathers like lice. They belong to Myobia, Dermaleichus, Mycoptes, and several other genera.


 Cat·tle n. pl.  Quadrupeds of the Bovine family; sometimes, also, including all domestic quadrupeds, as sheep, goats, horses, mules, asses, and swine.
 Belted cattle, Black cattle. See under Belted, Black.
 Cattle guard, a trench under a railroad track and alongside a crossing (as of a public highway). It is intended to prevent cattle from getting upon the track.
 cattle louse Zool., any species of louse infecting cattle. There are several species. The Hæmatatopinus eurysternus and Hæmatatopinus vituli are common species which suck blood; Trichodectes scalaris eats the hair.
 Cattle plague, the rinderpest; called also Russian cattle plague.
 Cattle range, or Cattle run, an open space through which cattle may run or range. [U. S.] --Bartlett.
 Cattle show, an exhibition of domestic animals with prizes for the encouragement of stock breeding; -- usually accompanied with the exhibition of other agricultural and domestic products and of implements.

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