Noun, Noun which may take the genitive case particle 'no'
1. dura; dura mater
Wikipedia definition
2. Dura materThe dura mater /ˈdjʊərə ˈmeɪtər/, or dura, is the outermost of the three layers of the meninges surrounding the brain and spinal cord. It is derived from mesoderm. The other two meningeal layers are the pia mater and the arachnoid mater. The dura surrounds the brain and the spinal cord and is responsible for keeping in the cerebrospinal fluid.
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