A dorsal process on the lower jaw associated with muscle attachment. It may be formed by a separate coronoid bone or as a process of the dentary. In most living (and many extinct) mammals, the most dorsal of the three proximal processes of the jaw. [ http://palaeos.com/vertebrates/glossary/glossaryCh.html#Coronoid%20process http://en.wikipedia.org/wiki/Coronoid_process_of_the_mandible ]