What is the meaning of stomach upset?

A disorder of digestive function characterized by discomfort or heartburn or nausea.
- synonyms: indigestion, dyspepsia, upset stomach

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APA	WordNet. (2010). stomach upset. Retrieved September 20, 2026, from http://smartdefine.org/stomach_upset/definitions/1313274
Chicago	WordNet. 2010. "stomach upset" http://smartdefine.org/stomach_upset/definitions/1313274 (accessed September 20, 2026).
Harvard	WordNet 2010, stomach upset, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/stomach_upset/definitions/1313274>.
MLA	WordNet. "stomach upset" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/stomach_upset/definitions/1313274>

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