Definitions

1. noun

A membrane or layer of connective tissue that encloses and protects the central nervous system, consisting of three main layers: the dura mater, arachnoid mater, and pia mater.

“The meninx is composed of three distinct layers that work together to safeguard the brain and spinal cord.”

2. plural noun

The membranes or layers of connective tissue that enclose and protect the central nervous system.

“The meninges are the protective layers surrounding the brain and spinal cord.”