The removal of the myelin sheath from a nerve fibre, normally as a result of disease(noun)
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Use "demyelination" in a sentence
"One risk is that the cerebral edema induced by the hypo-osmolality is clearly a bad thing and should not be allowed to persist and worsen and on the other hand there is the somewhat mysterious spectre of osmotic demyelination which is typically referred to by one of it forms namely central pontine myelinolysis."
"Central-nervous-system demyelination after immunisation with recombinant hepatitis B vaccine."
"In transverse myelitis, demyelination and injury to bundles of axonal nerves occurs in focal areas of the spinal cord, often leading to permanent and severe paralysis."