prognathousadj.

1836 J. C. Prichard Res. Physical Hist. Mankind (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.

1867 S. W. Baker Nile Tributaries (1872) iv. 56 They are exceedingly black, resembling..the negro, but without the flat nose or prognathous jaw.

1916 Man 16 88 Comparing these series with Predynastic Egyptians we find the latter more dolichocephalic, more prognathous, and more platyrrhinian.

1950 S. J. Perelman Swiss Family Perelman in Holiday Oct. 83/2 The last of the morning's clients, a prognathous foreigner with a tonsure resembling a Franciscan friar's.

1977 O. W. Richards & R. G. Davies Imms's Gen. Textbk. Entomol. (ed. 10) I. iv. 29 In the prognathous head the long axis is horizontal, or slightly inclined ventrally, while the mouthparts are anterior in position.

2004 N.Y. Times Mag. 2 May 78/1 After..primeval skulls with prognathous jaws and small brainpans came to be identified as ancestors of man, the idea took hold that Homo sapiens was just one evolutionary stage toward an even brainier superhuman.