|an extraordinary or unusual thing, person, or event; an exceptional example or instance.|
|a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.|
spina bifida spina bif·i·da (bĭf'ĭ-də)
A congenital defect in which the spinal column is imperfectly closed so that part of the meninges or spinal cord may protrude, often resulting in neurological disorders. Also called hydrocele spinalis.
|spina bifida (spī'nə bĭf'ĭ-də) Pronunciation Key
A congenital defect caused by incomplete formation of the neural tube, in which the vertebral column is not fully closed, resulting in protrusion of the meninges and sometimes the spinal cord. Damage to the exposed spinal cord can cause neurological abnormalites, including paralysis.
A congenital condition that involves an imperfectly closed spinal column, often resulting in neurological disorders.