py·ro·sis /paɪˈrosəs/
  心口灼熱,胃灼熱
  py·ro·sis /paɪˈrosəs/ 名詞
  胃灼熱
  Py·ro·sis n.  Med. See Water brash, under Brash.
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  pyrosis
       n : 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]