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(word root) skull
Examples of words with the root cranio-: craniotomy
Abused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embree


or crani-
Cranium: craniometer.

[From cranium.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


or before a vowel


combining form
(Anatomy) indicating the cranium or cranial: craniotomy.
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈkreɪ ni əm)

n., pl. -ni•ums, -ni•a (-ni ə)
1. the skull of a vertebrate.
2. Also called braincase. the part of the skull that encloses the brain.
[1375–1425; late Middle English < Medieval Latin crānium < Greek krāníon skull]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
OR coefficient error AP cranio- -0.176 0.075 5.568 1 0.018 0.839 cervical rotation ([degrees]) Constant 15.403 7.143 4.650 1 0.031 Legend: Anteroposterior (AP) cranio-cervical rotation ([degrees]) =angular relationship between the head position and the direction of the cervical spine.
Kleinheinz is affiliated with the Department of Cranio- and Maxillofacial Surgery at University Hospital, Muenster, Germany.