1) Crabs 2) Lousiness 1) Infestation 2) Lousiness 
Pediculosis is an infestation of lice—blood-feeding ectoparasitic insects of the order Phthiraptera. The condition can occur in almost any species of warm-blooded animal (i.e., mammals and birds), including humans. Although `pediculosis` in humans may properly refer to lice infestation of any part of the body, the term is sometimes used loosel.....
(pediculus + -osis) infestation with lice of the family Pediculidae, especially infestation with Pediculus humanus.
<dermatology> Infestation with lice of the family Pediculidae, especially infestation with Pediculus humanus. ... (18 Nov 1997) ... 
(pә-dik″u-lo´sis) infestation with lice (see louse). Lice live on the host's blood, obtained by piercing the skin and sucking the blood through the mouth part. The area of skin that has been bitten itches and may become sore and infected if the host continually scratches it. Not only are lice an annoya...
Type: Term Pronunciation: pĕ-dik′yū-lō′sis Definitions: 1. The state of being infested with lice.
Pediculosis: Infested with lice. See also: Head lice; Pubic lice.
[n] - infestation with lice (Pediculus humanus) resulting in severe itching
phthiriasis, phtheiriasis; pediculosis Infestation with any type of human lice.
lousiness noun infestation with lice (Pediculus humanus) resulting in severe itching
The state of being infested with lice. The typical skin findings include excoriated papules and pustules on the trunk and the perineum.
Infestation with lice.