mesiobuccaladj.
/ˌmɛsɪə(ʊ)ˈbʌkl/, U.S. /ˈˌmɛzɪoʊˈbək(ə)l/, /ˈˌmizɪoʊˈbək(ə)l/; see also mesio- comb. form. Chiefly Zoology and Dentistry.
Situated on or relating to the mesial and buccal aspects of a tooth.
ΚΠ
1911 A. H. Thompson in E. C. Kirk Amer. Text-bk. Operative Dentistry (ed. 4) i. 40 The Upper Molar... In an analysis of this tooth, therefore, the mesio-buccal tubercle (c) is the canine cusp.
1967 Science 24 Feb. 1008/3 These three genera [of Mesozoic mammal]..possessed a simple shearing-type occlusion, lost the mesiobuccal cingulum cusp of the lower molars, and reduced the talonid.
1990 European Jrnl. Orthodontics 12 367/2 A mesiobuccal torsion can be observed; the buccal component is predominant over the axial rotation.
This is a new entry (OED Third Edition, September 2001; most recently modified version published online March 2022).
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adj.1911