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Examination of the micro- fungal content of vomit can be a means of indentifying illness. Also known as vomitus, vomit contains a high concentration of hydronium and is thus strongly acidic. Bile can enter the vomit during subsequent heaves due to duodenal contraction if the vomiting is severe. The potential physiological complications associated with vomiting are mainly metabolic alkalosis and hypokalemia.
The domestic cat is well known for its tendency to vomit, particularly when attempting to dislodge hairballs from its throat or upper gastrointestinal tract. Dogs also vomit often (frequently after eating grass) and are also known for eating their own vomit, a fact even cited in the Bible.
Some adult birds regurgitate food to feed their young, triggered by a feather or a beak of their young. The food can be either incompletely digested or partially predigested, depending on the species. Some bird species may also use regurgitation as a form of defense, vomiting when wounded or molested. When an intruder or a predator comes near a fulmar on its nest, the bird vomits oil up to 3 feet at the enemy.
Some large mammals, including horses, rarely vomit. Many rodents lack the ability to vomit, and that is why mice and rats are easily killed by poisoning.
An emetic, such as Syrup of Ipecac, is a substance that induces vomiting when administered orally or by injection. An emetic is used medically where a substance (typically poison) has been ingested and must be expelled from the body immediately. Inducing vomiting can remove the substance before it is absorbed into the body.
An antiemetic is a drug that is effective against vomiting and nausea. Antiemetics are typically used to treat motion sickness and the side effects of some opioid analgesics and chemotherapy directed against cancer.
As with other physiological processes involving body wastes, vomiting has taboo aspects. This is shown by the large number of colourful euphemisms for vomiting. Slang terms and synonyms for vomiting: Throw up ( phrasal verb), puke, barf, heave, hurl, blow chunks, spew, yack, ralph, retch, chuck, chuck up, upchuck, sick up, spit up, bring up, toss cookies, lose your cookies, lose/blow your lunch, boke, chunder, cack, cascade, disgorge, urp, vurp, technicolor yawn, liquid laugh, laugh at the ground, holler New York, call Earl, paint the walls, spray McDonald's.
The experience of vomiting into a toilet has its own synonyms: hug/worship/pray to the porcelain god/goddess, pray to Dionysius, hug the throne, drive/ride the porcelain bus, talk to Ralph on the big white telephone, place a person-to-person call through the sewer system.
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