Gonial angle
also: jaw angle
The gonial angle is the angle of the jaw at the gonion. A well-defined gonial angle contributes to a sharp, masculine jawline.
The gonial angle is measured at the gonion — the corner of the mandible where the jawbone turns upward toward the ear. A more acute, well-defined angle tends to read as a sharper, more masculine jaw; a very obtuse angle can read as softer.
Jaw definition is a combination of bone structure and the soft tissue over it. You cannot change the bone without surgery, but you can reveal the jaw you have: lowering body-fat is by far the most effective lever, followed by good posture, staying hydrated to reduce facial bloat, and consistent tongue posture.
On Moggable
Moggable estimates jaw and chin definition from your gonial width and lower-third projection.
Scan & find your rank