heartburn: 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
symptom: (medicine) any sensation or change in bodily function that is experienced by a patient and is associated with a particular disease
packinghouse: a plant where livestock are slaughtered and processed and packed as meat products