(a.) Having the jaws projecting beyond the upper part of the face; -- opposed to orthognathous. See Gnathic index, under Gnathic.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). prognathous. Retrieved September 23, 2026, from http://smartdefine.org/prognathous/definitions/2049639 |
| Chicago | Webster's. 2011. "prognathous" http://smartdefine.org/prognathous/definitions/2049639 (accessed September 23, 2026). |
| Harvard | Webster's 2011, prognathous, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/prognathous/definitions/2049639>. |
| MLA | Webster's. "prognathous" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/prognathous/definitions/2049639> |