prognathism

prognathism /prog·na·thism/ (prog´nah-thizm) abnormal protrusion of the mandible.prognath´icprog´nathous

---

prognathism (prog´nthizm),

n a facial disharmony in which one or both jaws project forward. It may be real or false. Mandibular prognathism may exist when both the maxillae and the mandible increase in length or when the maxillae are of normal length but the mandible increases in length. It may be false when the maxillae are underdeveloped and short and the mandible is of normal length or when the maxillary and mandibular dental relationships are normal but there is an increase in the mental prominence of the mandible.

---

prognathism

abnormal protrusion of one or both jaws, especially the lower jaw.