[dee-mahy-uh-luh-ney-shuh n]

Origin of demyelination

First recorded in 1930–35; de- + myelination Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

demyelination in Medicine


  1. 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.