[en-doh-krey-nee-uh m]
noun, plural en·do·cra·ni·a [en-doh-krey-nee-uh] /ˌɛn doʊˈkreɪ ni ə/. Anatomy.
  1. the inner lining membrane of the skull; the dura mater.
  2. the inside surface of the skull.

Origin of endocranium

From New Latin, dating back to 1875–80; see origin at endo-, cranium
Related formsen·do·cra·ni·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for endocranial


noun plural -nia (-nɪə)
  1. anatomy the thick fibrous membrane that lines the cranial cavity and forms the outermost layer of the dura mater
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

endocranial in Medicine


  1. Within the cranium.
  2. Of or relating to the endocranium.


n. pl. en•do•cra•ni•a (-nē-ə)
  1. The outermost layer of the dura mater.
  2. The inner surface of the skull.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.