prognathism
(ˈprɒgnəθɪz(ə)m)
[f. as next + -ism (cf. synchronous, -chronism). So F. prognathisme.]
The condition of being prognathous; prognathic state or condition.
| 1864 in Webster. 1866 Laing Preh. Rem. Caithn. 63 The degree of prognathism, as shown by the projection of the upper jaw and teeth..is equal to that of the lowest specimens of the Negro and Australian races. 1880 I. L. Bird Japan II. 75 [In the Ainos] there is no tendency towards prognathism. 1896 [see orthognathism]. |