(1) - Eructation (n.) A violent belching out or emitting, as of gaseous or other matter from the crater of a volcano, geyser, etc. (2) - Eructation (n.) The act of belching wind from the stomach; a belch.
(1) - Erudition (n.) The act of instructing; the result of thorough instruction; the state of being erudite or learned; the acquisitions gained by extensive reading or study; particularly, learning in literature or criticism, as distinct from the sciences; scholarship.