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

sacrum

play
noun sa·crum \ˈsa-krəm, ˈsā-\

Definition of sacrum

plural sa·cra play \ˈsa-krə, ˈsā-\

  1. :  the part of the vertebral column that is directly connected with or forms a part of the pelvis and in humans consists of five fused vertebrae



Origin of sacrum

New Latin, from Late Latin os sacrum last bone of the spine, literally, holy bone, translation of Greek hieron osteon


First Known Use: 1753


Medical Dictionary

sacrum

play play
noun sa·crum \ˈsak-rəm, ˈsā-krəm\

Medical Definition of sacrum

plural sa·cra \ˈsak-rə, ˈsā-krə\play play

  1. :  the part of the spinal column that is directly connected with or forms a part of the pelvis by articulation with the ilia and that in humans forms the dorsal wall of the pelvis and consists of five fused vertebrae diminishing in size to the apex at the lower end which bears the coccyx



Illustration of sacrum


Learn More about sacrum

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


Seen and Heard

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

WORD OF THE DAY

February 6, 2016

an official order, decree, or edict

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

pince-nez kittly-benders spindrift duvet
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ