orbital fissure

noun

: either of two openings transmitting nerves and blood vessels to or from the orbit:
a
: one situated superiorly between the greater wing and the lesser wing of the sphenoid bone

called also superior orbital fissure, supraorbital fissure

b
: one situated inferiorly between the greater wing of the sphenoid bone and the maxilla

called also inferior orbital fissure, infraorbital fissure, sphenomaxillary fissure

Dictionary Entries Near orbital fissure

Cite this Entry

“Orbital fissure.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/orbital%20fissure. Accessed 6 Dec. 2022.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!


Commonly Confused Words Quiz

  • vector image of a face with thought expression
  • I went to the ______ store to buy a birthday card.
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ