pterygoquadrate

from The Century Dictionary.

• Pertaining to the pterygoid bone proper and to the quadrate bone, or suspensorium of the lower jaw, as in a vertebrate below mammals: as, the pterygoquadrate articulation.
• Combining elements of the pterygoid and quadrate bones: as, the pterygoquadrate cartilage of a shark.

from the GNU version of the Collaborative International Dictionary of English.

• adjective (Anat.) Of, pertaining to, or representing the pterygoid and quadrate bones or cartilages.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective anatomy Of or relating to the pterygoid and quadrate bones or cartilages.