'Dura mater' definitions:
Definition of 'dura mater'
(from WordNet)
noun
The outermost (and toughest) of the 3 meninges [syn: dura mater, dura]
Definition of 'Dura mater'
From: GCIDE
- Dura mater \Du"ra ma"ter\ [L., lit., hard mother. The membrane was called mater, or mother, because it was formerly thought to give rise to every membrane of the body.] (Anat.) The tough, fibrous membrane, which lines the cavity of the skull and spinal column, and surrounds the brain and spinal cord; -- frequently abbreviated to dura. [1913 Webster]