prognathous, a.
(ˈprɒgnəθəs)
[f. pro-2 + Gr. γνάθ-ος jaw + -ous. In mod.F. prognathe.]
Having projecting jaws; having a low facial angle: said of a skull or person; also of the jaws: prominent, protruding. Opposed to opisthognathous and orthognathous.
| 1836 Prichard Phys. Hist. Man. (ed. 3) I. ii. v. §1. 282, I shall give the following terms to these two varieties in the figure of the cranium, viz. to the narrow elongated form, that of Prognathous from the prominence of the jaw. 1851 D. Wilson Preh. Ann. (1863) I. ix. 232 Pyramidal and prognathous skulls. 1863 [see orthognathous]. 1867 Baker Nile Tribut. iv. (1872) 56 They are exceedingly black, resembling..the negro, but without the flat nose or prognathous jaw. |