IRRUPTION

Definition:

1. [noun] a sudden violent entrance; a bursting in; "the recent irruption of bad manners"
   
   
2. [noun] a sudden sharp increase in the relative numbers of a population
   
   
3. [noun] a sudden violent spontaneous occurrence (usually of some undesirable condition); "the outbreak of hostilities"
   Synonyms: outbreak, eruption
   
   

Synonyms:

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Related Words:

• epidemic
• recrudescence