multiple sclerosis

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From multiple cerebral sclerosis, i.e. appearance of hardenings or nodules dispersed throughout parts of the central nervous system, in the brain or spinal cord. Confusingly, sometime during the 20th century most sources started dropping cerebral from the expression, even though sclerosis can occur in the other tissues of the body, in pathologies unrelated to MS.


multiple sclerosis (uncountable) (abbreviated as MS)

  1. (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.