| 释义 |
Tay-Sachs Disease
noun[ U ]
medical specializeduk /teɪˈsæks dɪˌziːz/ us /ˈteɪˌsæks dɪˌziːz/(abbreviation TD); (abbreviation TSD); (B variant GM2 gangliosidosis)
a genetic disease in which the body is unable to get rid of a fatty substance called ganglioside so that it builds up in the brain, causing the nerves to stop working properly and eventually leading to death, usually before the age of three: 家族黑蒙性白痴病
For a child to have Tay-Sachs Disease, both parents must have the defective gene responsible.只有当父母都携带有缺陷的相关基因时，他们的孩子才会罹患家族黑蒙性白痴病。
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