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.
Meaning: The officer who presides at the meetings of an organization. Classified under: Nouns denoting people. Synonyms: chairman; chairperson; chairwoman; chair; president. Context example: address your remarks to the chairperson. Hypernyms (chairman is a kind of...): presiding officer (the leader of a group meeting) Hyponyms (each of the following is a kind of chairman): Kalon Tripa (the chairman of the Kashag and essentially head of the Tibetan government-in-exile)