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Louse (plural: lice) is the common name for members of the order Phthiraptera, which contains nearly 5,000 species of wingless insect.Lice are obligate parasites, living externally on warm-blooded hosts which include every species of bird and mammal, except for monotremes, pangolins, and bats.Lice are vectors of diseases such as typhus.. Chewing lice live among the hairs or feathers of their ...


Louse definition is - any of various small wingless usually flattened insects (orders Anoplura and Mallophaga) parasitic on warm-blooded animals. How to use louse in a sentence.


louse (lous) n. 1. pl. lice (līs) Any of numerous small, flat-bodied, wingless biting or sucking insects of the order Phthiraptera, which live as external parasites on birds and mammals, including humans. The lice are sometimes classified together with the psocids in the order Psocodea. 2. pl. lous·es (lous′ĭz) Slang A mean or despicable person. tr ...


Louse definition, any small, wingless insect of the order Anoplura (sucking louse), parasitic on humans and other mammals and having mouthparts adapted for sucking, as Pediculus humanus (body louse or head louse) and Phthirius pubis (crab louse or pubic louse). See more.


The head louse (Pediculus humanus capitis) is an obligate ectoparasite of humans that causes head lice infestation (pediculosis capitis).. Head lice are wingless insects spending their entire lives on the human scalp and feeding exclusively on human blood. Humans are the only known hosts of this specific parasite, while chimpanzees host a closely related species, Pediculus schaeffi.


Louse, (order Phthiraptera), any of a group of small wingless parasitic insects divisible into two main groups: the Amblycera and Ischnocera, or chewing or biting lice, which are parasites of birds and mammals, and the Anoplura, or sucking lice, parasites of mammals only.One of the sucking lice, the human louse, thrives in conditions of filth and overcrowding and is the carrier of typhus and ...


louse [lows] (pl. lice) any of various grayish, wingless insects parasitic on birds and mammals, including humans; they are usually one sixteenth to one sixth of an inch (0.15 to 0.4 cm) long. Lice are classified into two orders, Anoplura (the sucking lice) and Mallophaga (the bird lice or biting lice). The causal organisms of typhus, relapsing fever ...


Said the other: "I will become a louse, so as to be able to stay always in her bosom." The man might be a louse, but he was also a fighting machine of first order, still.


50 synonyms of louse from the Merriam-Webster Thesaurus, plus 50 related words, definitions, and antonyms. Find another word for louse.


A small parasitic wingless insect of the order Psocodea.· (colloquial, dated, not usually used in plural form) A contemptible person; one who is deceitful or causes harm. 1946, Joseph Thompson Shaw, The hard-boiled omnibus: early stories from Black Mask (page 388) He said: "Thanks, friend; but you're wasting your time. You better warn Crocker. If that ...