Hyomandibular \Hy`o*man*dib"u*lar\, a. [Hyo- + mandibular.]
(Anat.)
Pertaining both to the hyoidean arch and the mandible or
lower jaw; as, the hyomandibular bone or cartilage, a segment
of the hyoid arch which connects the lower jaw with the skull
in fishes. -- n. The hyomandibular bone or cartilage.
[1913 Webster]