Medical Dictionary

ilium

noun il·i·um \ˈil-ē-əm\
plural il·ia \-ē-ə\

Medical Definition of ILIUM

:  the dorsal, upper, and largest one of the three bones composing either lateral half of the pelvis that in humans is broad and expanded above and narrower below where it joins with the ischium and pubis to form part of the acetabulum

Illustration of ILIUM

Browse

May 27, 2015
riot act Hear it
a vigorous reprimand or warning
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears