1
[ noun ] a sudden violent entrance; a bursting in

Examples

"the recent irruption of bad manners"

Used in print

(Chester G. Starr, The Origins of Greek Civili...)

Those modern scholars who urge that we must keep in mind the fundamental continuity of Aegean development from earliest times - granted occasional irruptions of peoples and ideas from outside - are correct ; but all_too many observers have been misled by this fact into minimizing the degree of change which took_place in the early first millennium .

Related terms

entrance intrude

2
[ noun ] a sudden sharp increase in the relative numbers of a population

Related terms

population_growth

3
[ noun ] a sudden violent spontaneous occurrence (usually of some undesirable condition)

Synonyms

outbreak eruption

Examples

"the outbreak of hostilities"

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