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Definition of Heartburn
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 Heartburn
1. n. An uneasy, burning sensation in the stomach, often attended with an inclination to vomit. It is sometimes idiopathic, but is often a symptom of other complaints.
Definition of Heartburn
1. [n -S]
Medical Definition of Heartburn
1.