vaginal process of sphenoid bone

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vag·i·nal pro·cess of sphe·noid bone

[TA] a thin lamina of bone that extends medially under the body of the sphenoid bone from the medial lamina of the pterygoid process; it articulates with the vomer and the palatine bone. Synonym(s): processus vaginalis ossis sphenoidalis [TA], sheath process of sphenoid bone