multiple sclerosismultiple sclerosis
a chronic disease in which there is scattered demyelination of the central nervous system: it may result in speech defects, loss of muscular coordination, etc.
A chronic autoimmune disease of the central nervous system in which gradual destruction of myelin occurs in patches throughout the brain or spinal cord or both, interfering with the nerve pathways and causing muscular weakness, loss of coordination, and speech and visual disturbances.
(uncountable) (abbreviated as MS)
- (pathology) A chronic disease of the brain and spinal cord characterized by changes in sensation, visual problems, weakness, depression, difficulties with coordination and speech, impaired mobility and disability.