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Definition of Pyrosis

Pyrosis: A technical term for what is popularly called heartburn, a burning sensation in the upper abdomen. In many languages there is a technical term such as pyrosis and a popular term for the same phenomenon. For example, pyrosis is popularly known in French as brűlure epigastrique and in Spanish as ardor de estómago. Pyrosis is the Greek word meaning burning.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=32175
Last Editorial Review: 6/14/2012

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