noun
Meaning 1
Any of a group of disorders characterized by progressive degeneration of the white matter of the brain, caused by imperfect growth or development of the myelin sheath that acts as an insulator around nerve fibres.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: medicine, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided