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petrosphenoidal
petrosphenoidal adj.
Brit. 
/ˌpɛtrə(ʊ)sfᵻˈnɔɪdl/
, /ˌpɛtrə(ʊ)sfᵻˈnɔɪdl/U.S. /ˌpɛtroʊsfiˈnɔɪd(ə)l/
/ˌpɛtroʊsfiˈnɔɪd(ə)l/ΚΠ
1842 R. Dunglison Med. Lexicon (ed. 3) Petro-sphenoidal, belonging to the petrous portion of the temporal bone and to the sphenoid bone.
1967 G. M. Wyburn et al. Conc. Anat. v. 139/2 [The auditory tube] is related above to the petro-sphenoidal articulation.
2003 Neurosurgery 52 645 Both branches of the nerve passed beneath the petrosphenoidal ligament.
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