Synonym for leptomeninges ... The two delicate layers of the meninges, the arachnoid mater and pia mater (vs. The tough pachymeninx or dura mater), considered together; by this concept, the arachnoid and pia are two parts of a single layer, much like the parietal and visceral layers of a serous membrane or bursa; although separated by the subarachn...
(pi″ә-rak´noid) pia-arachnoid.
Type: Term Pronunciation: pī′ă-rak′noyd Synonyms: leptomeninx