Anatomy. Any of various structures named for a supposed resemblance to a wing; esp. (a) either of the lateral cartilages of the nose (cf. ala, n.1…

A saddle-shaped portion of the sphenoid, more fully sella equina, sella sphenoidalis or sella turcica.

Anatomy and Zoology. In humans: designating a long process which descends from the inferior surface of the sphenoid bone at the junction of its…

a pterygoid process or bone (see sense A. 1a); (in early use also) †the sphenoid bone (obsolete).

the space between the lateral and medial pterygoid plates.

A pterygoid bone, muscle, etc.; = pterygoid, n. Obsolete.

either of the two thin laminae of bone (medial and lateral) which are joined anteriorly to form the pterygoid process.

A pterygoid bone, process, or plate.

Of or pertaining to Ingrassias, an Italian anatomist of the sixteenth century, esp. in ingrassial bones, the lesser wings of the sphenoid bone…

The large wing-like process of the sphenoid bone of the human skull; a process or separate bone corresponding to this in the skulls of various…

A bone of the floor of the cranium, anterior to the sphenoid bone; (also) the anterior part of the sphenoid bone.

substantive = Clinoid process.

The posterior part of the sphenoid bone of the skull, which forms a separate bone in some vertebrates (and in human infants).

= postsphenoidal, adj. Only in postsphenoid bone.

Anatomy and Zoology mesopterygoid fossa n. the cavity between the two pterygoid bones of the skull.

Vesalian foramen, Vesalian vein: (see quots.).