• (a.) Of or pertaining to a segment sometimes present at the proximal end of the hyoidean arch. • (n.) An interhyal ligament or cartilage.
In`ter·hy'al adjective [ Inter- + the Greek letter ....] (Anat.) Of or pertaining to a segment sometimes present at the proximal end of the hyoidean arch. -- noun An interhyal ligament or cartilage.