Mentomeckelian
Pronunciation : Men`to*meck*e"li*an
Part of Speech : a.
Etymology : [1st mental + Meckelian.] (Anat.)
Definition : Defn: Of or pertaining to the chin and lower jaw. -- n.
Defn: The bone or cartilage forming the anterior extremity of the lower jaw in some adult animals and the young of others.
Source : Webster's Unabridged Dictionary, 1913