a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers
同义词：myeline, medulla
myelin详细解释
my.e.lin n.（名词）A white fatty material, composed chiefly of lipids and lipoproteins, that encloses certain axons and nerve fibers.Also called medulla 髓磷脂：一种包含着一些神经轴突和神经纤维的白色油脂物质，主要由脂质和脂蛋白组成也作 medulla 【引伸】 my.elin.ic adj.（形容词）
