Macrostomias

《英文msh词典》Macrostomias
[入口词] Macrostomias
[主题词] Macrostomia
[英文释义] Greatly exaggerated width of the mouth,resulting from failure of union of the maxillary and mandibular processes,with extension of the oral orifice toward the ear. The defect may be unilateral or bilateral. (Dorland,27th ed)