单词	spina bifida
释义	spina bifida /ˌspʌɪnə ˈbɪfɪdə / noun [mass noun] A congenital defect of the spine in which part of the spinal cord and its meninges are exposed through a gap in the backbone. It often causes paralysis of the lower limbs, and sometimes learning difficulties.This is a very important charity which treats children with serious illnesses such as cancer, leukaemia, spina bifida and cystic fibrosis.... Ultrasound can be used to diagnose certain congenital defects such as spina bifida. Often called open spine, spina bifida affects the backbone and, sometimes, the spinal cord. Origin Early 18th century: modern Latin (see spine, bifid).
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