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Definition of Pyrosis
1. Noun. A painful burning sensation in the chest caused by gastroesophageal reflux (backflow from the stomach irritating the esophagus); symptomatic of an ulcer or a diaphragmatic hernia or other disorder.
Definition of Pyrosis
1. n. See Water brash, under Brash.
Definition of Pyrosis
1. heartburn [n -SISES] - See also: heartburn