meningocele

noun
me·​nin·​go·​cele
variants: also meningocoele \ me-​ˈniŋ-​gə-​ˌsēl How to pronounce meningocoele (audio) , mə-​ˈnin-​jə-​ How to pronounce meningocoele (audio) \

Medical Definition of meningocele

: a protrusion of meninges through a defect in the skull or spinal column (as in spina bifida) forming a cyst filled with cerebrospinal fluid