petrohyoid
petrohyoid (pet`ro*hī"oid) , adjective
[Petro + hyoid.]
(Anatomy) Pertaining to the petrous, or periotic, portion of the skull and the hyoid arch; as, the petrohyoid muscles of the frog.
petrohyoid (pet`ro*hī"oid) , adjective
[Petro + hyoid.]