[in-di-jes-chuhn, -dahy-]
uncomfortable inability or difficulty in digesting food; dyspepsia.
an instance or case of indigestion.

1400–50; late Middle English < Late Latin indīgestiōn- (stem of indīgestiō). See in-2, digestion Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
indigestion (ˌɪndɪˈdʒɛstʃən)
Technical name: dyspepsia difficulty in digesting food, accompanied by abdominal pain, heartburn, and belching

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Word Origin & History

1450, from O.Fr. indigestion (13c.), from L.L. indigestionem, from in- "not" + digestionem (see digest (v.)).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

indigestion in·di·ges·tion (ĭn'dĭ-jěs'chən, -dī-)

  1. The inability to digest or a difficulty in properly digesting food in the alimentary tract.

  2. Abdominal discomfort or illness resulting from this inability or difficulty.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
indigestion   (ĭn'dĭ-jěs'chən)  Pronunciation Key 
See dyspepsia.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica


any or all of the symptoms-abdominal discomfort, belching, flatulence, aversion to eating, nausea, vomiting, diarrhea, constipation, heartburn-associated with the malfunctioning of the digestive system. Indigestion may be caused by disease, but it primarily occurs because of stress, improper eating habits, excessive smoking, exorbitant consumption of coffee or alcohol, or hypersensitivity to particular foods. Indigestion can be alleviated by avoiding the foods or drinks that seem to cause it and by not smoking

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
Possible signs of gastric cancer include indigestion and stomach discomfort or
Clearly suffering from a severe case of indigestion, it stayed there for hours,
  excreting wastes from all orifices.
Political wining and dining bring ethical indigestion.
So there will be a period of indigestion but no crisis.
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