髄ずい膜まくずいまくMeanings1nounmeninges; meninx; membranous coveringsanatomy›Anatomical term for the three membranes covering the brain and spinal cord. Often used in medical contexts; related terms include 硬膜 (dura mater), くも膜 (arachnoid mater), and 軟膜 (pia mater).See also: 硬膜 · くも膜 · 軟膜髄ずい膜まく炎えんは髄ずい膜まくの炎えん症