1. A reflex that expels gas noisily from the stomach through the mouth
   "The baby's eructation after feeding relieved its discomfort";
   - belch, belching, burp [informal], burping [informal]
    
2. (of volcanoes) pouring out fumes or lava (or a deposit so formed)
   "The sudden eructation of steam startled the hikers";
   - eruption, extravasation

Derived forms: eructations

Type of: action, activeness, activity, ejection, expulsion, forcing out, inborn reflex, innate reflex, instinctive reflex, physiological reaction, projection, reflex, reflex action, reflex response, unconditioned reflex

Encyclopedia: Eructation