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

occipital bone

noun

Definition of occipital bone

  1. :  a compound bone that forms the posterior part of the skull and bears a condyle by which the skull articulates with the atlas



1679

First Known Use of occipital bone

1679


Medical Dictionary

occipital bone

noun

Medical Definition of occipital bone

  1. :  a compound bone that forms the posterior part of the skull and surrounds the foramen magnum, bears the condyles for articulation with the atlas, is composed of four united elements, is much curved and roughly trapezoidal in outline, ends in front of the foramen magnum in the basilar process, and bears on its external surface behind the foramen magnum the two curved transverse superior and inferior nuchal lines as well as the median external occipital crest and external occipital protuberance



Illustration of occipital bone


Learn More about occipital bone


Seen and Heard

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

WORD OF THE DAY

to lessen in amount, effect, or force

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

two-chairs-on-a-pier-by-the-ocean-in-summer

Which of the following words means “of or relating to summer”?

hiemal vernal brumal estival
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