nit

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nit

 [nit]
the egg of a louse.

nit

(nit),
1. The ovum or hatched egg of a body, head, or crab louse; the egg is attached to human hair or clothing by a layer of chitin.
2. A unit of luminance; a luminous intensity of 1 candela per square meter of orthogonally projected surface.
[A.S. knitu]

nit

(nit) the egg of a louse.

nit

(nĭt)
n.
The egg of certain parasitic insects, especially a head louse.

nit′ty adj.

nit

the egg of a parasitic insect, particularly a louse. It may be found attached to human or animal hair or to clothing fiber. See also pediculosis.
enlarge picture
Microscopic view of a nit
Medical entomology An empty louse egg shell, deposited by Pediculus capitis, P corporis, Phthirus pubis—‘crabs’. See Louse
Physics nt A unit of luminance—photometric brightness equal to 1 candela/m2

nit

Medical entomology An empty louse egg shell, deposited by Pediculus capitis, P corporis, Phthirus pubis–'crabs'. See Louse.

nit

(nit)
1. The ovum of a body, head, or crab louse; it is attached to human hair or clothing by a layer of chitin.
2. A unit of luminance; a luminous intensity of 1 candela per square meter of orthogonally projected surface.
[A.S. knitu]

nit

A louse egg. Each egg is glued to the shaft of a hair very close to the skin surface. Most nits will not be removed by combing unless this fact is borne in mind. Nit-picking is not recommended.

nit

the egg of the human louse Pediculus humanus which is found attached to hair.

candela per square metre 

SI unit of luminance. Syn. nit. Symbol: cd/m2. See luminance; SI unit.

nit

louse egg.
Enlarge picture
Nit (louse egg) cemented to hair. By permission from Kummel BA, Color Atlas of Small Animal Dermatology, Mosby, 1989