postsphenoid
/ˌpəʊs(t)ˈsfiːnɔɪd/Anatomy
noun
The posterior part of the sphenoid bone of the skull, which forms a separate bone in some vertebrates (and in human infants).
adjective
= postsphenoidal. Only in postsphenoid bone.
Origin
Mid 19th century; earliest use found in Proceedings of the Royal Society of London. From post- + sphenoid.