- 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)
Definition from: MeSH via Unified Medical Language System at the National Library of Medicine
- 1: The condition of having an abnormally large mouth.
2: An abnormally large mouth.
Definition from: Merriam-Webster's Medical Dictionary by Merriam-Webster Inc.
See also Understanding Medical Terminology.