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dura mater

[mey-ter] /ˈmeɪ tər/
noun, Anatomy.
the tough, fibrous membrane forming the outermost of the three coverings of the brain and spinal cord.
Also called dura.
Compare arachnoid (def 6), pia mater.
Origin of dura mater
1350-1400; Middle English < Medieval Latin: literally, hard mother Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for dura mater

dura mater

/ˈdjʊərə ˈmeɪtə/
the outermost and toughest of the three membranes covering the brain and spinal cord Often shortened to dura See also meninges
Word Origin
C15: from Medieval Latin, hard mother
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for dura mater

"tough outer membrane surrounding the brain," c.1400, from Medieval Latin dura mater cerebri, literally "hard mother of the brain," a loan-translation of Arabic umm al-dimagh as-safiqa, literally "thick mother of the brain." "In Arabic, the words 'father,' 'mother,' and 'son' are often used to denote relationships between things" [Klein].

Online Etymology Dictionary, © 2010 Douglas Harper
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dura mater in Medicine

dura mater dura ma·ter (mā'tər, mä-)
The tough fibrous membrane covering the brain and the spinal cord and lining the inner surface of the skull. Also called dura , pachymeninx.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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dura mater in Science
dura mater
  (dr'ə mā'tər, mä'-)   
The tough fibrous membrane covering the brain and the spinal cord and lining the inner surface of the skull. It is the outermost of the three membranes (meninges) that surround the central nervous system, overlying the arachnoid and pia mater.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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