The Collaborative International Dictionary of English v.0.48:

Glossohyal \Glos`so*hy"al\, a. [Gr. ? the tongue + the letter
   ?.] (Anat.)
   Pertaining to both the hyoidean arch and the tongue; --
   applied to the anterior segment of the hyoidean arch in many
   fishes. -- n. The glossohyal bone or cartilage; lingual bone;
   entoglossal bone. Glossolalia