orbital fissure

noun

Medical Definition of orbital fissure

: 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

Learn More About orbital fissure

Dictionary Entries Near orbital fissure

orbitale

orbital fissure

orbital index

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Cite this Entry

“Orbital fissure.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/orbital%20fissure. Accessed 20 Sep. 2021.

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