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ilium

[il-ee-uh m]
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noun, plural il·i·a [il-ee-uh] /ˈɪl i ə/. Anatomy.
  1. the broad, upper portion of either hipbone.
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Origin of ilium

1705–1710; < New Latin, special use of Medieval Latin īlium, as singular of Latin īlia; see ileum
Related formspre·il·i·um, noun, plural pre·il·i·a.sub·il·i·um, noun, plural sub·il·i·a.
Can be confusedileum ilium Ilium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for subilium

Ilium

noun
  1. the Latin name for ancient Troy
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ilium

noun plural -ia (-ɪə)
  1. the uppermost and widest of the three sections of the hipbone
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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

Word Origin and History for subilium

ilium

n.

pelvic bone, 1706, Modern Latin, from Latin ilia (plural) "groin, flank" (see ileum).

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Online Etymology Dictionary, © 2010 Douglas Harper
subilium in Medicine

subilium

(sŭb-ĭl′ē-əm)
n.
  1. The portion of the ilium contributing to the acetabulum.
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Related formssub•il′i•ac′ (-ăk′) adj.

ilium

(ĭl′ē-əm)
n. pl. il•i•a (-ē-ə)
  1. The uppermost and widest of the three bones constituting either of the lateral halves of the pelvis.iliac bone
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
subilium in Science

ilium

[ĭl′ē-əm]
Plural ilia
  1. The uppermost and widest of the three bones that fuse together to form each of the hipbones. See more at skeleton.
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Related formsiliac adjective
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.