Category: N

Unskilled in both hands, as opposed to ambidextrous, or skilled with both hands; often occurring in young children where handedness or lateral dominance is not yet established.  

A parent whose ex-partner has been awarded sole legal custody of a child, as in a divorce case without shared custody. Noncustodial parents normally retain visitation rights.  

Medical notation on a patient’s chart meaning do not resuscitate.  

A medical physician who focuses on the subspecialty of ear and hearing problems involving the acoustic nerve.  

The growth of a child’s control over fine and gross motor skills, especially in the early child-hood and preschool years; a term often used by child psychologists.  

Maltreatment stemming largely from acts of omission, often linked with active mistreatment, as in child abuse and neglect. A legal term for failure to provide the necessary care for a dependent person. In neurology, absence of perception of — or disregard for — the nondominant part of the body in patients who have had a…

Norrie disease is a syndrome of retinal malformation characterized by dysplasia of retina and associated with mental retardation and deafness.  

Nonverbal learning disability (NVLD) is defined as a discrepancy between good or average verbal skills and poor nonverbal skills. More specifically, NVLD is characterized by difficulty with nonverbal skills such as social perception, visual-spatial organization and perception, problem solving, arithmetic, abstract thinking, and psychomotor integration. There is some research to suggest that NVLD is associated…

Nezelof syndrome is one of many immunodeficiency disorders. Other names for Nezelof syndrome include Nezelof thymic aplasia, thymic dysplasia with normal immunoglobulins, combined immunodeficiency with immunoglobulins, pure alymphocytosis, Nezelof-type severe combined immunodeficiency, and immune defect due to the absence of the thymus. As with other immunodeficiency disorders, Nezelof syndrome is characterized by decreased ability of…

Neuronal migration disorders (NMDs) are a group of disorders caused by the abnormal migration of nerve cells (neurons) very early in the development of the fetal nervous system. Neuronal migration is the process in which neurons move from their place of origin to their permanent location. When this process is disrupted, the result is a…