Prognathism: MedlinePlus Medical Encyclopedia
medlineplus.gov › ency › articlePrognathism is an extension or bulging out (protrusion) of the lower jaw (mandible). It occurs when the teeth are not properly aligned due to the shape of the face bones. Considerations Prognathism may cause malocclusion (misalignment of the biting surfaces of the upper and lower teeth). It can give a person an angry, or fighter's appearance.
Prognathism - Wikipedia
https://en.wikipedia.org/wiki/PrognathismPrognathism in humans, particularly alveolar prognathism, can occur due to normal variation among phenotypes. In human populations where prognathism is not the norm, it may be a malformation, the result of injury, a disease state, a hereditary condition, or, if not pathological, may simply be a minority trait within a population.