eructation/ɪ.ɹʌkˈteɪ.ʃən/EtymologyLearned borrowing from Latin ērūctātiōnem, accusative of ērūctātiō (“a belching forth, burp”), from ērūctāre (“to belch, burp”). Compare Middle English eructuacioun (“belching, burp”), borrowed from the same root.eructation means the act of belching, of expelling gas from the stomach through the mouth. Lexicurio rates it Rare gem — a strength score of 78 out of 100.nounThe act of belching, of expelling gas from the stomach through the mouth.“His eyes were as restless as his limbs, and seemed ever to be seeking for something upon which they could definitely alight, and not finding it. He performed eructations with the disarming naturalness of a baby.”An erumpent blast of gas, wind, or other matter ejected from the depths of the earth.