retrognathia

retrognathism

 [ret″ro-nath´izm] retrusion of the mandible. Called also retrognathia. adj., adj retrognath´ic.

retrognathia

(rĕt″rō-năth′ē-ă) [L. retro, back, + Gr. gnathos, jaw] Location of the mandible behind the frontal plane of the maxilla.