orthognathous, a. Ethnol.
(ɔːˈθɒgnəθəs)
[f. ortho- ‘straight’ + Gr. γνάθ-ος jaw + -ous; in mod.F. orthognathe.]
Straight jawed; having the jaws not projecting beyond the vertical line drawn from the forehead; having a facial angle of about 90°. Said of the skull; also of persons.
| 1853 in Dunglison Med. Lex. 1863 Q. Rev. CXIV. 383 No law..will give us the relative dates of brachycephalous, and dolichocephalous, thick-skulled or thin-skulled, orthognathous or prognathous men. 1877 Dawson Orig. World 428 Culture tends to the elevation of the nasal bones, to an orthognathous condition of the jaws. 1881 Tylor Anthropol. 62 The European is orthognathous or upright jawed. |