nervous disorder, neurological disease, neurological disorder - a disorder of the nervous system

Friedreich's ataxia, herediatry spinal ataxia - sclerosis of the posterior and lateral columns of the spinal cord; characterized by muscular weakness and abnormal gait; occurs in children

hereditary cerebellar ataxia - nervous disorder of late childhood and early adulthood; characterized by ataxic gait and hesitating or explosive speech and nystagmus

spinocerebellar disorder - any of several congenital disorders marked by degeneration of the cerebellum and spinal cord resulting in spasticity and ataxia