orthognathous

/awr-thog-nuh-thuhs/US // ɔrˈθɒg nə θəs //UK // (ɔːˈθɒɡnəθəs) //

正统的,正畸,正字型,正字形

Definitions

adj.形容词 adjective

1
Craniometry.
- : straight-jawed; having the profile of the face vertical or nearly so; having a gnathic index below 98.

At its northeastern end is the most round-headed, orthognathous, straight-haired, and yellow-skinned race.
I do not see that an orthognathous face would cost more than a prognathous face; or a good morale than a bad one.
There is little or no brow prominence and one at least of the skulls is as orthognathous in facial angle as that of a European.
The "gnathic index" is said to show that Europeans and Bushmen are orthognathous.