vomiting

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vomiting (vom-it-ing) n. the reflex action of ejecting the contents of the stomach through the mouth. Vomiting is controlled by a special centre in the brain that may be stimulated by drugs acting directly on it or by impulses transmitted from the stomach (e.g. after ingesting irritating substances), the intestine (e.g. in intestinal obstruction), or from the inner ear (in motion sickness). Medical name: emesis.

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