Myelin
[maiәli(:)n]
解释:
(noun.) a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers.
阿斯特编辑--From WordNet
解释:
(n.) A soft white substance constituting the medullary sheats of nerve fibers, and composed mainly of cholesterin, lecithin, cerebrin, albumin, and some fat.
(n.) One of a group of phosphorized principles occurring in nerve tissue, both in the brain and nerve fibers.
英格拉姆编辑