Pronunciation: (hī'oid), [key] Anat., Zool.
Also,hy•oi'dal,hy•oi'de•an.noting or pertaining to a U-shaped bone at the root of the tongue in humans, or a corresponding bone or collection of bones in animals.
the hyoid bone. See diag. under larynx.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.