Definify.com
Webster 1913 Edition
Meninges
Me-nin′ges
(mē̍-nĭn′jēz)
, Noun.
 pl.
sing. 
. Meninx 
(mē̍-nĭṉks′)
[NL., fr. Gr. 
μῆνιγξ
, μῆνιγγος
, a membrane.] (Anat.) 
The three membranes that envelop the brain and spinal cord; the pia mater, dura mater, and arachnoid membrane.