Meninges

n. pl.

1.

(Anat.) The three membranes that envelop the brain and spinal cord; the pia mater, dura mater, and arachnoid membrane.

Noun

1.

meninges - a membrane (one of 3) that envelops the brain and spinal cord Synonyms: meninx

arachnoid, arachnoid membrane, dura, dura mater, leptomeninges, membrane, meninx, pia mater, subarachnoid space, tissue layer