from the GNU version of the Collaborative International Dictionary of English
- n. See under Facial.
- adj. the angle, in a skull, included between a straight line (ab, in the illustrations), from the most prominent part of the forehead to the front efge of the upper jaw bone, and another (cd) from this point to the center of the external auditory opening. See Gnathic index, under Gnathic.
Sorry, no etymologies found.
A. Retzius introduced the word orthognathism to signify an almost right facial angle (90°), and called the more acute facial angle prognathy.
By facial angle is meant that formed by the line connecting the naso-frontal suture and the point farthest forward on the upper jaw between the central incisors (the alveolar point) with the German horizontal plane.
The facial part of the skull with a facial angle up to 82 is called prognathous; with an angle of 83 to