n 1: the sudden occurrence of a violent discharge of steam and
volcanic material [syn: volcanic eruption]
2: symptom consisting of a breaking out and becoming visible
3: (of volcanos) pouring out fumes or lava [syn: eructation]
4: a sudden very loud noise [syn: bang, blowup, clap, blast, loud noise]
5: the emergence of a tooth as it breaks through the gum