eruption

(n) the sudden occurrence of a violent discharge of steam and volcanic material volcanic eruption,
(n) symptom consisting of a breaking out and becoming visible
(n) (of volcanos) pouring out fumes or lava (or a deposit so formed) eructation, extravasation,
(n) a sudden violent spontaneous occurrence (usually of some undesirable condition)
- the outbreak of hostilities
outbreak, irruption,
(n) a sudden very loud noise clap, bam, bang, blast,
(n) the emergence of a tooth as it breaks through the gum

volcanic eruption eructation extravasation outbreak irruption clap bam bang blast

eruptive