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the involuntary ejection of air and gases from the stomach through the mouth as a result of spasms of the gastric pylorus with simultaneous reflex muscle contractions in the stomach, diaphragm, and abdomen. Eructation in healthy persons is episodic, occurring, for example, only with overeating.

Regularly occurring, loud eructation arises as a result of swallowing air, most often in neurotics. Frequent eructation may be a symptom of a gastric disease, for example, chronic gastritis or an ulcer, or of diseases of other organs in the abdominal cavity, for example, the liver or gallbladder. Occasionally, food particles are ejected from the stomach along with gases and air; this is called regurgitation and is especially frequent with nursing infants who overeat.

Sour eructation is accompanied by ejection of gastric juice, and bitter eructation, by ejection of bile. The odor of rotten eggs is noticeable with eructation when food masses are stuck in the stomach as a result of pyloric stenosis; the odor indicates putrefaction in the stomach. Eructation is treated by healing the underlying cause.

References in periodicals archive ?
You still can see smoke belching vehicles running around the streets of Metro Manila and elsewhere.
Maintaining a healthy diet and avoiding spicy and oily foods, carbonated beverages and overeating may help reduce belching.
In the infelicitously titled Belching Out the Devil, the British comic-turned-watchdog chronicles those atrocities, from death squads hired by a bottler in Colombia to assassinate unionists, to a water-hogging plant in drought-prone Rajasthan, India, to a rumored monopoly in Mexican groceries.
If Enceladus weren't belching new ice particles, the E ring would probably have vanished long ago.
Upper gastrointestinal symptoms that can accompany running include heartburn, belching, nausea, bloating, and chest pain.
None of the villagers was prepared for the shocking event that occurred on that dreadful day the spoilers descended upon them, looking for all the world like monstrous beasts of prey, on their huge belching machines.
In Apes (all works 2001), the latest installation by the New York- and Zurich-based Swiss artist Olaf Breuning, the program of light and sound, which ranged from guttural humming tones to belching, was self-activated.
Nux Vomica: Belching accompanied by sour risings, with pressure as if stone in stomach.
INDIGESTION, wind, belching, flatulence, heartburn, gastritis, ulcers and other similar digestive problems affect most of us at one time or another.
Shahed points to a picture of an urban bus belching noxious fumes and says that in America, "People have an experience like this stuck in their minds.
In fact, burping (technically called belching or eructation, for you crossword puzzle fans) is a normal physiological response to eating.
IAN WRIGHT gets the weekend off to a dubious start with coverage of the world's loudest belching competition.