
• (n.) The hyomandibular bone or cartilage. • (a.) 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.
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http://thinkexist.com/dictionary/meaning/hyomandibular/

Hy`o·man·dib'u·lar adjective [ 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. --
Found on
http://www.encyclo.co.uk/webster/H/80
No exact match found.