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eruption (n.)

early 15c., erupcioun, from Old French éruption (14c.) and directly from Latin eruptionem (nominative eruptio) "a breaking out," noun of action from past-participle stem of erumpere "break out, burst forth," from assimilated form of ex "out" (see ex-) + rumpere "to break, rupture" (see rupture (n.)).

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Definitions of eruption

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);
Synonyms: outbreak / irruption
eruption (n.)
a sudden very loud noise;
Synonyms: bang / clap / blast / bam
eruption (n.)
the emergence of a tooth as it breaks through the gum;
From wordnet.princeton.edu