(of volcanos) pouring out fumes or lava (or a deposit so formed)
a reflex that expels gas noisily from the stomach through the mouth
例句
A housewife, 56 years old, fatty in stature. She had epigastric pain for recent ten years, with eructation and Belching at times and it was usually occurred after meals. 一56岁家庭主妇,肥胖体质。10年来有上腹痛,有时有打嗝和嗳气,常发生于饭后。
On the Development of Harvard Undergraduate Eructation 哈佛大学本科教育理念的演进
