Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The outermost layer of the dura mater.
  • n. The inner surface of the skull.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The layer between the dura mater and the skull.

from The Century Dictionary and Cyclopedia

  • n. In zoology and anatomy, a collective name for the processes which project inward from the cranium of an animal, and serve to support the organs of the head: applied by Huxley to the hard pieces found in the head of an insect, and invisible without dissection.
  • n. The lining membrane of the skull; the dura mater.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. membrane lining the inside of the skull

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