Search Result for "leptomeninges": 
Wordnet 3.0

NOUN (1)

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



WordNet (r) 3.0 (2006):

leptomeninges
    n 1: the two innermost layers of the meninges; cerebrospinal
         fluid circulates between these innermost layers