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
同义词：heartburn
pyrosis详细解释
py.ro.sis n.（名词）See heartburn 参见 heartburn 来源：New Latin 现代拉丁语 from Greek purôsis [a burning] 源自 希腊语 purôsis [燃烧] from puroun [to burn] 源自 puroun [燃烧] from pur [fire] * see pôr- 源自 pur [火] *参见 pôr-
