eruption (n.)the sudden occurrence of a violent discharge of steam and volcanic material;
Synonyms: volcanic eruption
eruption (n.)symptom consisting of a breaking out and becoming visible;
eruption (n.)(of volcanos) pouring out fumes or lava (or a deposit so formed);
eruption (n.)a sudden violent spontaneous occurrence (usually of some undesirable condition);
eruption (n.)a sudden very loud noise;
eruption (n.)the emergence of a tooth as it breaks through the gum;