eruc·ta·tion /ɪˌrʌkˈteʃən, ˌi-/
1. The act of belching wind from the stomach; a belch.
2. A violent belching out or emitting, as of gaseous or other matter from the crater of a volcano, geyser, etc.
n 1: (of volcanos) pouring out fumes or lava (or a deposit so
formed) [syn: eruption, extravasation]
2: a reflex that expels wind noisily from the stomach through
the mouth [syn: belch, belching, burp, burping]