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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 ?
Completing the trio of unpleasant bodily habits was burping out loud when alone at home - popular with 30 per cent of people.
1) He's no heavyweight, but Justin Timberlake knows how to burp, beating Hugh Jackman in a Kids' Choice Awards burping contest Saturday at UCLA.
Some of it gels squeezed back out of your mouth, causing eructation (ih-rehk-TAY-shun), a fancy word for burping.
Burping can exacerbate the problem by bringing up more acid, which then further irritates the lining of the esophagus, causing potentially serious long-term problems.
The medical word for burping is "eructation", though few people use the word or know what it means.
And 34pc said they had no shame in burping loudly in public or passing wind indiscreetly (29pc).
This burping contest appears in Promises, which chronicles the lives of seven Israeli and Palestinian children, ages nine to thirteen, living in and around Jerusalem.
The "polite" term for burping is eructation (ee-ruck-TAY-shun).
Burping is your body's way of relieving the build-up of extra stomach gas.
By morning, the bucket is empty and a contented group of New Jersey pigs is burping in satisfaction over a gourmet breakfast.
Most people may learn to ignore behaviours that others refuse responsibility for, from obvious gaffes -- such as burping in public -- to the subtler intricacies of lying, Ekman argues.
After whole blood is collected, air is traditionally forced out of the blood bag by burping -- manually squeezing-- the bag before the blood undergoes additional processing prior to transfusion.