from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The act of vomiting.

from The Century Dictionary.

  • noun In zoology, a genus of butterflies, of the family Erycinidæ. E. fatima is the typical species, and there are several others, all South American.
  • noun In pathology, the act of vomiting; discharge from the stomach by the mouth.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Med.) A vomiting.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun medicine The act or process of vomiting or having vomited.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun the reflex act of ejecting the contents of the stomach through the mouth


from The American Heritage® Dictionary of the English Language, 4th Edition

[Greek, from emein, to vomit; see wemə- in Indo-European roots.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From the Greek ἐμέω "I vomit" (confer ἔμετος "vomit").


  • Induction of emesis is recommended in the alert patient if performed within 30 minutes of an ingestion of TCE.

    poison prevention for Delaware, Lehigh Valley, S.E. Pennsylvania

  • GRACE: Doctor, when I was reading the investigative description of the hotel room, I notice that it mentioned emesis, which is basically vomit, to my understanding, in the bathroom sink.

    CNN Transcript Mar 26, 2007

  • Gastric emptying via emesis or lavage should be performed in patients who have ingested greater than 40-60 mg./kg. of elemental iron or an unknown amount. 1 Activated charcoal is not useful, unless there are co-ingestants, since it does not bind metals such as iron. 1 Iron tablets are radiopaque, therefore, an abdominal radiograph should be performed to determine if there is evidence of iron tablets in the stomach or small bowel.

    Iron Poisoning

  • I never realized what a big deal n emesis bedbugs would become: Soviet-style bogeymen at the height of the Cold War, the Osama bin Laden s of our bedrooms and pillow cases.

    Sniffing Out Tiny Terrorists

  • Spontaneous vomiting is common in these patients so induction of emesis may, at times, be a questionable benefit.


  • Since patients may become lethargic or comatose quickly, Syrup of Ipecac-induced emesis carries with it obvious risks.

    Clonidine Overdose in Children

  • Standard decontamination procedures should be followed in the conscious patient, including emesis with syrup of ipecac or gastric lavage, activated charcoal and a cathartic.

    Monamine Oxidase Inhibitors

  • Repetitive oral activated charcoal and control of emesis in severe theophylline toxicity.


  • And when I have to retch I ask her to hurry get me a barf bag, she asks for an emesis basin.

    Why do I put up with this woman?

  • Both ipecac-induced emesis and emesis from insertion of a lavage tube can increase the risk of aspiration.

    Hydrocarbon Ingestion


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