Meaning of MYELIN
| Pronunciation: | | 'mIilin
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 WordNet Dictionary |
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| | Definition: | | [n] a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers |
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| | Synonyms: | | medulla, myeline |
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| | See Also: | | fat, medullary sheath, myelin sheath | |
| Webster's 1913 Dictionary |
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| | Definition: | | \My"e*lin\, n. [Gr. ? marrow.] (Physiol. Chem.)
(a) A soft white substance constituting the medullary sheats
of nerve fibers, and composed mainly of cholesterin,
lecithin, cerebrin, albumin, and some fat.
(b) One of a group of phosphorized principles occurring in
nerve tissue, both in the brain and nerve fibers.
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| Medical Dictionary |
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| | Definition: | | The fatty substance that covers and protects nerves. |
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