Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The innermost layers of the meninges; the pia mater and the arachnoid

from The Century Dictionary and Cyclopedia

  • In anatomy, the pia mater and arachnoid.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the two innermost layers of the meninges; cerebrospinal fluid circulates between these innermost layers

Etymologies

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Examples

  • Cerebral amyloid angiopathy (CAA) refers to the deposition of b - amyloid in the media and adventitia of small - and mid-sized arteries (and less frequently, veins) of the cerebral cortex and the leptomeninges.

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