mesognathismn.
/mɛˈsɒɡnəθɪz(ə)m/, /mᵻˈsɒɡnəθɪz(ə)m/, U.S. /məˈzɑɡnəˌθɪz(ə)m/; see also meso- comb. form. Physical Anthropology. Now rare.
The fact or condition of being mesognathous.
ΘΚΠ
the world > life > the body > external parts of body > head > face > jaws > [noun] > conditions or positions of
underhanging1842
prognathism1860
orthognathism1862
rest position1865
mesognathy1884
eurygnathism1890
prognathy1890
mesognathism1891
underhang1903
underbite1976
1891 New Sydenham Soc. Lexicon Mesognathism, the state or condition of being Mesognathous.
1908 Jrnl. Royal Anthropol. Inst. 38 19 Here, then, is Camper trying to express, by measurement, the varying proportions of the face and cranium in the different races; those differences which we express by the terms prognathism, mesognathism and orthognathism.
1915 Man 15 102 I have..four skulls yielding an alveolar index of 103, that is..on the border-line of mesognathism.
1957 Man 57 36/1 Infantile characters in the skeleton are mainly cranial—[including] mesognathism or orthognathism.
This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022).
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n.1891