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demyelinating disease

[dē-mī′ə-lə-nā′tĭng]

n.

Any of a group of diseases of unknown cause in which there is extensive loss of the myelin sheaths of nerve fibers, as in multiple sclerosis.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.