NOTE: This is the Professional Version. CONSUMERS: Click here for the Consumer Version. A bezoar is a tightly packed collection of partially digested or undigested material that is unable to exit the stomach. Gastric bezoars are usually rare and can occur in all age groups. They often occur in patients with behavior disorder or abnormal gastric emptying and also after gastric surgery.
verb (used without object), presided, presiding. 1. to occupy the place of authority or control, as in an assembly or meeting; act as president or chairperson. 2. to exercise management or control (usually followed by over): The lawyer presided over the estate. Origin of preside.
ruler. n. 1. (Government, Politics & Diplomacy) a person who rules or commands. 2. (Tools) Also called: rule a strip of wood, metal, or other material, having straight edges graduated usually in millimetres or inches, used for measuring and drawing straight lines.thnarch-the ruler of a province (as in the Roman Empire and Byzantine Empire) or certain religious rulers with secular authority; the election of Makarios III to archbishop gave him the status of the ethnarch of Cyprus. hakim-a Muslim ruler or governor or judge.