Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

ilium

play
noun il·i·um \ˈi-lē-əm\

Definition of ilium

plural ilia play \-lē-ə\

  1. :  the broad, dorsal, upper, and largest of the three principal bones composing either half of the pelvis



Origin of ilium

New Latin, alteration of Latin ilia


First Known Use: 1706

Rhymes with ilium


Ilium

geographical name il·i·um

Definition of Ilium

  1. — see troy 3

Ilian play \ˈi-lē-ən\ adjective or noun



Medical Dictionary

ilium

play
noun il·i·um \ˈil-ē-əm\

Medical Definition of ilium

plural ilia \-ē-ə\play

  1. :  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


Learn More about ilium

  1. Medical Dictionary: Definition of "ilium" Britannica.com: Encyclopedia article about "ilium"


Seen and Heard

What made you want to look up ilium? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

marked by propriety and good taste

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

maudlin prompt angry oily
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ