meninges

n. three membranes that cover the brain and spinal cord (Anatomy)

The meninges (singular meninx) is the system of membranes which envelop the central nervous system. The meninges consist of three layers: the dura mater, the arachnoid mater, and the pia mater. The primary function of the meninges and of the cerebrospinal fluid is to protect the central nervous system.
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Meninges /me·nin·ges/ sing. meninx [Gr.] the three membranes covering the brain and spinal cord: dura mater, arachnoid, and pia mater. [more]Meninges - Community and Resources

Noun
1. a membrane (one of 3) that envelops the brain and spinal cord
(synonym) meninx
(hypernym) membrane, tissue layer
(hyponym) leptomeninges
(part-meronym) subarachnoid space

Noun
1. a membrane (one of 3) that envelops the brain and spinal cord
(synonym) meninges
(hypernym) membrane, tissue layer
(hyponym) leptomeninges
(part-meronym) subarachnoid space

n. meninx, meninges (Anatomy)