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[il-ee-ak] /ˈɪl iˌæk/
of, relating to, or situated near the ilium.
Origin of iliac
1510-20; ili(um) + -ac
Related forms
transiliac, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for iliac
  • The common iliac is represented by the upper third of this line, the external iliac by the remaining two-thirds.
  • It enters the pelvic cavity by crossing either the termination of the common, or the commencement of the external, iliac vessels.
British Dictionary definitions for iliac


(anatomy) of or relating to the ilium
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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Word Origin and History for iliac

1510s, "pertaining to the disease ileus or colic," from French iliaque or directly from Late Latin iliacus, from ilium "flank, side, entrails" (see ileum).

Online Etymology Dictionary, © 2010 Douglas Harper
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iliac in Medicine

iliac il·i·ac (ĭl'ē-āk')
Of, relating to, or situated near the ilium.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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iliac in Science
Plural ilia
The uppermost and widest of the three bones that fuse together to form each of the hipbones. See more at skeleton.

iliac adjective
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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