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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 ?
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.
Mike's blossoming belching career only started a week ago when he was joking with colleagues.
Piamonte said it is about time to get the support of the citizens in implementing the law against smoke belching.
Fallow deer like dense woodland but have been seen rutting in the open valley at Dinefwr Park; | listen out for rhythmic belching and bellowing; | scrapes and wallows - these are signs that rutting deer, or deer preparing for the rut, have used the area.
Summary: Guatemala's Fuego volcano has begun belching lava and ash thousands of feet into the sky.
Researchers in New Zealand, with financial support from farmers, are investigating whether they can create a vaccine to reduce the animals' flatulence and belching.
A Kiwi fashion blogger Gala Darling has made two resolutions: "learn a party trick - weird stomach contortion, belching the alphabet and handstand push-up demonstrations" or "learn the names of flowers - it's such an odd thing to master, but it's so utterly charming that I can't help but be impressed".
Gregson, who plays taxi boss Steve McDonald, had been due to appeal against the conviction on the grounds that his belching may have wrongly caused a positive breath test.
s neighborhoods would pass feng shui muster -- or any rational quality-of-life metric -- what with the lax billboard rules, crammed streets, crumbling sidewalks, lack of streetlights, and traffic-clogged roads belching fumes.
The longer the moon has been belching water vapor, the more likely it is to have retained liquid water beneath its surface, says Parkinson.
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.