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inion

[in-ee-uh n] /ˈɪn i ən/
noun, Craniometry
1.
a point at the external occipital protuberance of the skull.
Origin
1805-1815
1805-15; < Neo-Latin < Greek īníon nape of the neck, equivalent to īn- (stem of ī́s) fiber, sinew + -ion diminutive suffix
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for inion

inion

/ˈɪnɪən/
noun
1.
(anatomy) the most prominent point at the back of the head, used as a point of measurement in craniometry
Word Origin
C19: from Greek: back of the head
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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inion in Medicine

inion in·i·on (ĭn'ē-ən)
n.
The most prominent projecting point of the occipital bone at the base of the skull.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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