demyelination

[dee-mahy-uh-luh-ney-shuhn]
noun
loss of myelin from the nerve sheaths, as in multiple sclerosis.

Origin:
1930–35; de- + myelination

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American Heritage
Medical Dictionary

demyelination de·my·e·lin·a·tion (dē-mī'ə-lə-nā'shən) or de·my·e·lin·i·za·tion (-lə-nĭ-zā'shən, -lĭn'ĭ-)
n.
The destruction or removal of the myelin sheath of a nerve fiber, as through disease.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
The research team then injected both sets of mice with a detergent that caused the demyelination of their nerve cells.
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