leptomeninges

[ lĕp′tō-mə-nĭnjēz ]

n.

The pia mater and arachnoid considered as one unit enveloping the brain and spinal cord.pia-arachnoid

Related forms

lep′to•me•ninge•al (-jē-əl) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.