'Heartburn' definitions:

Definition of 'heartburn'

(from WordNet)
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 [syn: heartburn, pyrosis]

Definition of 'Heartburn'

From: GCIDE
  • Heartburn \Heart"burn`\ (-b[^u]rn`), n. (Med.) 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. [1913 Webster]

Words containing 'Heartburn'