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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



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.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The researchers found that 60 percent of patients in the treatment group and none of the control subjects achieved ≥50 percent reduction in belching visual analogue scale score.
At baseline, 77% of patients had moderate to severe global dyspepsia symptoms; 74% of the placebo group and 55%% of the rifaximin group had moderate to severe belching.
A Belching, or burping, is the expulsion of gas from your gut, resulting most commonly from a stomach inflated with swallowed air.
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.
For instance, his 1805 perspective of Pandemonium, or Part of the High Capital of Satan and His Peers with its endless Neo-Classical arcades, and domes and pyramids belching fire, and sable backdrop of arid mountains conflates the horrors of Milton's Palace of the Rebel Angels with the smoke and flames of the Industrial Revolution (Lukacher tentatively suggests Ledoux's 1804 Cannon Factory at Chaux as a possible source for some of the imagery; surely the influence of Alexander Cozens at Coalbrookdale is there too).
Although it may seem counterintuitive because of belching smokestacks and car tailpipes, indoor air quality is actually worse overall than what you'll find outside.
Upper GI symptoms like belching, nausea, and vomiting are not uncommon in athletes.
In their film Stories Are Propaganda, 2005, a sequence of images shot in China--of a smokestack belching black plumes, of ocean waves crashing to shore, of a rabbit appearing out of thin air in a magician's box--is accompanied by a child's long monologue.
MY girlfriend has this terrible habit of belching. I have asked her to stop but she just laughs.
Scientists say that belching bovines are only part of the smog problem.