Heartburn meaning

härt'bûrn'
A burning sensation, usually centered in the middle of the chest near the sternum, caused by the reflux of acidic stomach fluids that enter the lower end of the esophagus.
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A burning sensation beneath the breastbone resulting from a spastic reflux of stomach acid, food, etc. into the esophagus; pyrosis; brash.
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A burning sensation, usually centered in the middle of the chest near the sternum, caused by the reflux of acidic stomach fluids that enter the lower end of the esophagus.
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A burning sensation, usually centered in the middle of the chest near the sternum, caused by the reflux of acidic stomach fluids that enter the lower end of the esophagus.
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(pathology) A burning pain in the chest that is caused by stomach acid entering the gullet.
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Origin of heartburn

  • From heart +‎ burn, translating Ancient Greek καρδιαλγία (kardialgia).
    From Wiktionary