mesioclusion

noun
me·​sio·​clu·​sion
variants: also mesiocclusion \ ˌmē-​zē-​ə-​ˈklü-​zhən, -​sē-​ How to pronounce mesiocclusion (audio) \

Medical Definition of mesioclusion

: malocclusion characterized by mesial displacement of one or more of the lower teeth