Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
my·e·lin(mī′ə-lĭn) also my·e·line (-lĭn, -lēn′)
A white fatty material, composed chiefly of lipids and lipoproteins, that encloses certain axons and nerve fibers. Also called medulla.
(Anatomy) 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
my•e•lin(ˈmaɪ ə lɪn)
a soft, white, fatty material in the membrane of Schwann cells and certain neuroglial cells of the nervous system: the substance of the myelin sheath.
A whitish, fatty substance that forms a sheath around many nerve fibers. Myelin insulates the nerves and permits nerve impulses to travel more rapidly. The white matter of the brain is composed of nerve fibers covered in myelin.
The fatty white substance forming an insulating sheath around many nerve fibers.
Switch to new thesaurus
|Noun||1.||myelin - a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers|
medullary sheath, myelin sheath - a layer of myelin encasing (and insulating) the axons of medullated nerve fibers
fat - a soft greasy substance occurring in organic tissue and consisting of a mixture of lipids (mostly triglycerides); "pizza has too much fat"
n. mielina, sustancia de tipo grasoso que cubre las fibras nerviosas.