The Collaborative International Dictionary
Mentomeckelian
Mentomeckelian \Men`to*meck*e"li*an\, a. [1st mental + Meckelian.] (Anat.) Of or pertaining to the chin and lower jaw. -- n. The bone or cartilage forming the anterior extremity of the lower jaw in some adult animals and the young of others.
Wiktionary
mentomeckelian
a. (context anatomy English) Of or relating to the chin and lower jaw. n. (context anatomy English) The bone or cartilage forming the anterior extremity of the lower jaw in some animals.