dura mater
Concise Oxford English Dictionary © 2008 Oxford University Press:
dura mater /ˌdjʊərə ˈmeɪtə/
▶noun Anatomy the tough outermost membrane enveloping the brain and spinal cord.
– derivatives
dural adjective.
dural adjective.
– origin C19: from med. L., lit. ‘hard mother’, translation of Arab. al-'umm al-jāfiya ‘coarse mother’.
'dura mater' also found in these Oxford entries:

