| 单词 | multiple sclerosis |
| 释义 | multiple sclerosis【医】 [脑脊髓]多发性硬化 multiple sclerosis multiple sclerosis n.Abbr. MS（名词）缩写 MSA chronic degenerative disease of the central nervous system in which gradual destruction of myelin occurs in patches throughout the brain or spinal cord or both, interfering with the nerve pathways and causing muscular weakness, loss of coordination, and speech and visual disturbances. It occurs chiefly in young adults and is thought to be caused by a defect in the immune system that may be of genetic or viral origin.多发性硬化：中枢神经系统一种慢性退化性疾病，发病时髓脂质慢性形成斑状损坏，遍及大脑和脊髓或两处同时出现，干扰神经通路并导致肌肉无力、协调性丧失以及语言和视力障碍。这种疾病主要出现在年轻的成年人中，并被认为是源于遗传或病毒所引起的免疫系统缺陷所导致的 |
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