orthognathous Meaning, Definition & Usage

Or*thog"na*thous adjective
Etymology
Ortho- + Gr. the jaw.
Definitions
  1. (Anat.) Having the front of the head, or the skull, nearly perpendicular, not retreating backwards above the jaws; -- opposed to prognathous. See Gnathic index, under Gnathic.

Webster 1913