a white tissue forming an insulating sheath (myelin sheath) around certain nerve fibres. Damage to the myelin sheath causes neurological disease, as in multiple sclerosis
Derived forms
myelinic (ˌmyeˈlinic)
adjective
myelin in American English
(ˈmaɪəlɪn)
noun
the white, fatty substance forming a sheath about certain nerve fibers
Derived forms
myelinic (ˌmyeˈlinic)
adjective
Word origin
Ger < Gr myelos, marrow: see myelo- & -ine3
Examples of 'myelin' in a sentence
myelin
And there was a barely discernible" trace sclerosis" of the myelin sheath, the insulating tissue that covers the nerve fibers.