louse
nounDefinition of louse
(Entry 1 of 2)
a
: any of various small wingless usually flattened insects (orders Anoplura and Mallophaga) parasitic (see parasite sense 2) on warm-blooded animals
b
: a small usually sluggish arthropod (such as a biting louse) that lives on other animals or on plants and sucks their blood or juices
c
: any of several small arthropods (such as a book louse) that are not parasitic
2
plural louses\ ˈlau̇-​səz
\
: a contemptible person : heel
what a beast, what a cad, what a louse he had been— Walter Karig
louse
verb
loused;
lousing
Definition of louse (Entry 2 of 2)
: to remove lice from
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