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.
The Presiding Officer is the person who presides over the United States Senate and is charged with maintaining order and decorum, recognizing members to speak, and interpreting the Senate's rules, practices and precedents.he Presiding Officer is a role, not an actual office; whoever is presiding at the time is the Presiding Officer.