ERUCTATION
belch, belching, burp, burping, eructation
(noun) a reflex that expels gas noisily from the stomach through the mouth
eruption, eructation, extravasation
(noun) (of volcanos) pouring out fumes or lava (or a deposit so formed)
Source: WordNet® 3.1
Noun
eructation (countable and uncountable, plural eructations)
The act of belching, of expelling gas from the stomach through the mouth.
An erumpent blast of gas, wind, or other matter ejected from the depths of the earth.
Source: Wiktionary
Er`uc*ta"tion, n. Etym: [L. eructatio: cf. F. Ă©ructation.]
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.
Source: Webster’s Unabridged Dictionary 1913 Edition