inion
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in·i·on
(ĭn′ē-ən)n.
The most prominent projecting point of the occipital bone at the base of the skull.
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.
inion
(ˈɪnɪən)n
(Anatomy) anatomy the most prominent point at the back of the head, used as a point of measurement in craniometry
[C19: from Greek: back of the head]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
in•i•on
(ˈɪn i ən)n.
the bulging part of the human occipital bone at the back of the skull.
[1805–15; < New Latin < Greek īníon nape of the neck]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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Noun | 1. | inion - the craniometric point that is the most prominent point at the back of the head (at the occipital protuberance) craniometric point - a landmark on the skull from which craniometric measurements can be taken occipital bone - a saucer-shaped membrane bone that forms the back of the skull |
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