The Collaborative International Dictionary
Hypobranchial
Hypobranchial \Hy`po*bran"chi*al\, a. [Pref. hypo- + branchial.] (Anat.) Pertaining to the segment between the basibranchial and the ceratobranchial in a branchial arch. -- n. A hypobranchial bone or cartilage.
Wiktionary
hypobranchial
a. (context anatomy English) Relating to the segment between the basibranchial and the ceratobranchial in a branchial arch. n. (context anatomy English) A bone or cartilage of this kind.