ERUPTION

eruption

(noun) the emergence of a tooth as it breaks through the gum

bang, clap, eruption, blast, bam

(noun) a sudden very loud noise

outbreak, eruption, irruption

(noun) a sudden violent spontaneous occurrence (usually of some undesirable condition); “the outbreak of hostilities”

eruption, eructation, extravasation

(noun) (of volcanos) pouring out fumes or lava (or a deposit so formed)

eruption

(noun) symptom consisting of a breaking out and becoming visible

Source: WordNet® 3.1

Etymology

Noun

eruption (countable and uncountable, plural eruptions)

A violent ejection, such as the spurting out of lava from a volcano.

A sudden release of pressure or tension.

An infection of the skin resulting in a rash or blemishing.

Source: Wiktionary

E*rup"tion, n. Etym: [L. eruptio, fr. erumpere, eruptum, to break out; e out + rumpere, to break: cf. F. éruption. See Rupture.]

1. The act of breaking out or bursting forth; as: (a) A violent throwing out of flames, lava, etc., as from a volcano of a fissure in the earth's crust. (b) A sudden and overwhelming hostile movement of armed men from one country to another. Milton. (c) A violent commotion. All Paris was quiet . . . to gather fresh strength for the next day's eruption. W. Irving.

2. That which bursts forth.

3. A violent exclamation; ejaculation. He would . . . break out into bitter and passionate eruditions. Sir H. Wotton.

4. (Med.)

Definition: The breaking out of pimples, or an efflorescence, as in measles, scarlatina, etc.

Source: Webster’s Unabridged Dictionary 1913 Edition